Nidus

Ash⭐

Atlas⭐

Banshee⭐

Baruuk

Caliban

Chroma⭐

Ember⭐

Equinox⭐

Excalibur⭐

Frost⭐

Gara⭐

Garuda⭐

Gauss

Grendel

Gyre

Harrow⭐

Hildryn

Hydroid⭐

Inaros⭐

Ivara⭐

Khora

Lavos

Limbo⭐

Loki⭐

Mag⭐

Mesa⭐

Mirage⭐

Nekros⭐

Nezha⭐

Nidus⭐

Nova⭐

Nyx⭐

Oberon⭐

Octavia⭐

Protea

Revenant

Rhino⭐

Saryn⭐

Sevagoth

Titania⭐

Trinity⭐

Valkyr⭐

Vauban⭐

Volt⭐

Wisp

Wukong⭐

Xaku

Yareli

Zephyr⭐

Warframes

Prime

CONCLAVE (PvP)

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Nidus

Normal
Mutated

Passive

If Nidus is killed with at least 15 stacks of Mutation, those 15 stacks are consumed; this grants 5s of invulnerability and restores Health to 50%.

General Information

Sex

Male

Introduced

Update 19.5 (2016-12-22)

Themes

Infestation, Mutation

Subsumed Ability

CODEX

Command the Infestation to mutate and grow ever more destructive.

This is Nidus, the adaptive, the scourge.

Nidus is a deadly plague for which there is no cure. You must control the strange disease.

—Lotus

Release Date: December 22nd, 2016

Epitome of the endlessly evolving Infestation, Nidus bends the vile corruption to his will, mutates his genetic potency to adapt and assimilates his victims with an insatiable parasitic hunger. Nidus and his strain developed in Update 19.5 (2016-12-22).

Acquisition

Nidus' main blueprint is acquired from The Glast Gambit quest, additional main blueprints can be bought from Cephalon Simaris for 50,000 Standing 50,000. Nidus' component blueprints are acquired from Rotation C of Infested Salvage on Oestrus, Eris.

Item	Source	Chance	Expected	Nearly Guaranteed
Chassis Blueprint	Infested Salvage / C	14.29%	~ 6 C Rotations	44 ± 14 C Rotations
Neuroptics Blueprint	Infested Salvage / C	14.29%	~ 6 C Rotations	44 ± 14 C Rotations
Systems Blueprint	Infested Salvage / C	14.29%	~ 6 C Rotations	44 ± 14 C Rotations

All drop rates data is obtained from DE's official drop tables. See Mission Rewards#Standard Missions for definitions on reward table rotations. Drop chances are rounded to two decimal places, following the official drop tables repository.
Expected means a player can expect to obtain at least one of a drop every N attempts on average.
Nearly Guaranteed refers to the total number of attempts a player needs to obtain a 1 in 10^2,3, and 4 probability not to have recieved a single drop (99%, 99.9%, and 99.99% probability to have received at least one drop).
The combined probability of multiple drops is 1 - ((1-A%) * (1-B%) * ...) (add drops in same rotation)
^{For more detailed definitions and information,
visit here.}

Manufacturing Requirements
25,000	1	1	1	2,000	Time: 72 hrs
25,000	1	1	1	2,000	Rush: 50 Platinum 50
Market Price: 225 Platinum 225			Blueprint Price: N/A

Chassis
15,000	6,000	1,400	5,000	3	Time: 12 hrs
15,000	6,000	1,400	5,000	3	Rush: 25 Platinum 25

Neuroptics
15,000	10	1,000	2,600	3	Time: 12 hrs
15,000	10	1,000	2,600	3	Rush: 25 Platinum 25

Systems
15,000	6,000	3,500	14	6	Time: 12 hrs
15,000	6,000	3,500	14	6	Rush: 25 Platinum 25

Lore

Fair, but the Myconians aren't asking for charity. Their ancestral understanding of the Infestation comes from an Old War relic. A relic that I know, will be of extreme interest to you. Return the Triuna, and the relic will be yours. Fair compensation for the risk.

—Ergo Glast on Nidus during The Glast Gambit

Little is known about the history of the Nidus Warframe aside from its Orokin era origins. However, the Myconans have apparently used information learned from their time possessing the relic to produce the Triuna, a person with genetic immunity to the Infestation which they fear due to their hybrid nature, allowing them to harvest Infested flesh as part of their livelihood.

Nidus has a mysterious connection with the Helminth being that resides in the Orbiter, being the only Warframe that can purposely be infected by the Helminth Virus; the extent of this relationship is currently unknown.

Notes

As Nidus has no shields, any Hijack objective will drain his health instead in order to move.
- He also cannot receive overshields, or gain shields from allied Shield Ospreys, Orokin Drones, Hildryn's Haven, or Protea's Grenade Fan.
- His lack of shields prevents him from receiving shield gating.
- However, there are benefits with Nidus's lack of shields, such as:
  - The Decaying Dragon Key, having no negative effect, allows Nidus to carry it without issue.
  - The No Shields Nightmare Mode condition has no effect.
  - Cryogenic Leakage has no effect on his nonexistent shields. His friction is still affected however.
  - Magnetic has no effect on his nonexistent shields. Energy drain and HUD disruption still occur, however.
  - Rage and Hunter Adrenaline always giving energy when damage is taken.
  - Finally, unlike any other Warframe with the exception of his Prime Version, Nidus possesses health regeneration.
Nidus can uniquely access the Orbiter's Helminth Infirmary without the Helminth Segment prerequisite. If he sits in the infirmary's chair, he will be injected with the "Helminth Virus", forming an Infested cyst on the left side of his neck after 24 hours and grows to full size after 7 days, while simultaneously "awakening" the Helminth which will begin to communicate to the Tenno. Nidus can also spread this virus to other players he comes into contact with in combat and in a Clan Dojo or Orbiter, causing the cyst to grow on their Warframe, and those Warframes can also further propagate the virus.
- The injection will only occur once, and will not happen again to additionally built Nidus. However, Nidus can still receive the cyst from another infected player.
When entering the Helminth room, Nidus will automatically switch to his fully infested form (as he appears with 10 Mutation Stacks). As he leaves the room, he will revert to his normal appearance.
Nidus' appearance changes as he accumulates Mutation Stacks:
- At 3 stacks, tendrils will protrude from his neck and upper spine, while the carapace around his ribs will open.
- At 5 and 7 stacks respectively, the carapace around his thighs and arms will open to reveal more infested flesh and tendrils beneath.
- At 10 stacks, the sides of his head extend outward to form a pair of horns, also exposing many more tendrils.
The bonus 150 armor that Nidus gets from leveling is not affected by armor-boosting Mods such as Steel Fiber; they only calculate off of the original 300 armor and the extra 150 is added at the end.
- Despite the above, at max level and max ranked full Umbral Mod Set, Carnis Carapace, and Armored Agility, Nidus can end up with 1342.5 armor (for an 81.7% damage reduction) and 1740 health for an approximate effective health of 9508, one of the highest of any Warframe.

Trivia

The word nidus (Latin root: "nest") is defined as the site of origin for disease or bacteria or a place where bacteria multiplies.
Nidus is the first Warframe to use Kuva as a blueprint ingredient.
Nidus is the second Warframe after Inaros to have no base shields whatsoever.
Nidus is also the first Warframe to use another type of ability resource besides energy, in the form of Mutation stacks.
- This trend would later be followed by Baruuk, Hildryn, Gauss, Ember, and Grendel.
Nidus is the first and only Warframe to innately regenerate Health.
Nidus is the first frame to have extra stat bonuses when leveling up.
The screech of Nidus' fourth ability was done by Digital Extremes sound designer, Willem Schonken.^[1]

Reference

↑ Devstream #102

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Nidus Prime

Normal
Mutated

Passive

If Nidus is killed with at least 15 stacks of Mutation, those 15 stacks are consumed; this grants 5s of invulnerability and restores Health to 50%.

General Information

Sex

Male

Mastery Rank

0

Health

175 (525 at Rank 30)

Shields

0 (0 at Rank 30)

Armor

350 (525 at Rank 30)

Energy

125 (187.5 at Rank 30)

Initial Energy

50

Sprint Speed

1

Aura Polarity

Exilus Polarity

None

Polarities

Introduced

Update 30.7 (2021-09-08)

Themes

Infestation, Mutation

Progenitor Element

CODEX

Mutation is endless. The ravening plague-bearer returns in a long-unseen form, seething with a primal strain of the Infestation. Features altered Mod polarities for greater customization.

We cast our shining child adrift on strange seas. For with time, these starless currents black as mourning may work a sea-change. And if, one grisly dawn, the skies should hurl you, herald-like, back to Earth, remind us, foundling, of what we immaculate ones have lost.

What succulent riches disease's kiss may bring.

My festering demigod. My Nidus.

—Ballas

Release Date: September 8th, 2021

Nidus Prime is the Primed variant of Nidus, sporting enhanced Health, Energy, and Armor, as well as an additional polarity. He was released alongside the Strun Prime and the Magnus Prime.

Acquisition

Lith, Meso, Neo, and Axi refer to Void Relics | (V) Denotes Vaulted Void Relics | (B) Denotes Baro Ki'Teer Exclusive Void Relic

Nidus Prime's Relic Drops
Chassis Blueprint	Systems Blueprint	Blueprint	Neuroptics Blueprint
Lith N12 Rare Lith N7 Rare (V) Neo N18 Rare (V)	Meso A3 Common Neo C2 Common Meso B5 Common (V)	Lith T9 Uncommon Meso N12 Uncommon Axi A14 Uncommon (V)	Neo N16 Rare

Manufacturing Requirements
25,000	1	1	1	5	Time: 72 hrs
25,000	1	1	1	5	Rush: 50
Market Price: 375			Blueprints Price:N/A

Nidus Prime Neuroptics Blueprint
15,000	2	600	1,100	4,975	Time: 12 hrs
15,000	2	600	1,100	4,975	Rush: 25

Nidus Prime Chassis Blueprint
15,000	2	450	1,425	5,500	Time: 12 hrs
15,000	2	450	1,425	5,500	Rush: 25

Nidus Prime Systems Blueprint
15,000	2	3	1,250	3,800	Time: 12 hrs
15,000	2	3	1,250	3,800	Rush: 25

Notes

Nidus Prime, compared to Nidus:
- Higher Health (175/525 vs. 150/450)
- Higher Energy (125/188 vs. 100/150)
- Higher Armor (350/525 vs. 300/450)
- Additional Polarity ( vs. )
As a Prime Warframe, Nidus Prime possesses a special passive ability where contact with an Orokin Void Death Orb will release an energy pulse that grants 250 Energy to all nearby allies. This effect can only occur once per Death Orb, and can occur even if the Death Orb has been previously destroyed.
Nidus Prime's appearance changes as he accumulates Mutation Stacks:
- At 3 stacks, black tendrils form on the left side of his face, as well as his entire left arm.
- At 5 stacks, the tendrils extend to cover his chest and back.
- At 7 stacks, the right side of his fleshy body becomes covered in a black mass, as the golden metallic spikes on his right arm protrude outward, while tendrils form on his lower body.
- At 10 stacks, the tendrils extend to cover his entire face and thighs.
Virulence, Larva, Ravenous' Maggots and its Infested nests have unique models of Orokin design, appearing twisted and overtaken by Nidus' Infestation.
- Maggot Prime visually resembles Excalibur Prime's default helmet.

Trivia

Nidus Prime was revealed during TennoCon 2021 on 17th July 2021. Players in the TennoCon Relay were granted an up-close look of his in-game model.
Nidus Prime's concept art was illustrated by Mike Brennan, the original designer of Nidus.
Nidus Prime is the ninth Primed Warframe whose non-Primed variant was unlockable through a quest (The Glast Gambit), after Gara, Octavia, Inaros, Titania, Atlas, Chroma, Limbo, and Mirage.

Media

Warframe - Nidus Prime Access - Available Now on All Platforms

Nidus Prime Build - The Plague Knight 2021 (Guide) - Warframe

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Passive

The Infestation dwelling within Nidus mutates rapidly when used against his foes, fueling his abilities and yielding various symbiotic benefits. Nidus possesses various passive mechanics highlighted in the tabs below:

Mutation Stacks are a resource unique to Nidus, indicated by the Mutation counter and gauge displayed in the lower-right on the HUD, above the ability icons.

The gauge is divided into 5 sections which represent the number of hits dealt to enemies via Nidus' abilities, while the counter at the center of the gauge keeps track of the number of Mutation stacks up to a maximum of 100.
- When generating Mutation, the sections light up clockwise. Once all 5 sections have lit up, the gauge completes a cycle and the sections become unlit again, while the counter increases by 1 Mutation stack. The following abilities generate 1/5th of a Mutation stack:
  - Each enemy hit with Virulence.
  - Each enemy hit by Ravenous' maggot explosion.
  - Each enemy killed from any source while held by Larva at a 50% chance.
  - Abilities are not required to deal damage to enemies, only ability contact is needed to increase Mutation stacks.
  - When gaining or losing large numbers of stacks, the gauge only changes one at a time, making it difficult to estimate the actual count.
    - This can be bypassed by briefly switching to the Operator, as this will instantly refresh to the current amount of stacks.
- Mutation stacks are stored until used by the player. Stacks will not disappear in the event of a host migration.
- Ability-nullifying enemies such as Nullifier Crewman will drain 1 Mutation stack every 2 seconds, ramping up the drain rate the longer Nidus remains in their radius.
- Each Mutation stack causes the gauge to gradually appear more infested, and upon reaching 100 stacks the counter is hidden and the gauge is overlapped by Virulence's ability icon colored in red and black.
The amount of Mutation stacks stored benefits Nidus' abilities:
- Increases the damage of Virulence and Ravenous' maggot explosion.
- Parasitic Link costs 1 stack to activate instead of using energy.
- Ravenous costs 3 stacks to activate instead of using energy.
Nidus' appearance changes as more stacks are collected:
- With the base skin:
  - At 3 stacks, tendrils will protrude from his neck and upper spine, while the carapace around his ribs will open.
  - At 5 and 7 stacks respectively, the carapace around his thighs and arms will open to reveal more infested flesh and tendrils beneath.
  - At 10 stacks, certain sections of his currently-equipped helmet will open up.
    - With the base helmet, the sides of his head extend outward to form a pair of horns, also exposing many more tendrils.
    - With the Nidus Prion Helmet, the "mouth" and the ligature open up, revealing Void-like energy underneath.
    - With the Nidus Myxini Helmet, the helmet opens up down the middle to reveal a monstrous mouth-like face.
- With the Nidus Phryke Skin:
  - At 3 stacks, he gains protective armor on his thighs, and his shoulder pads are covered in a cage-like armor with a protruding spike on the top.
  - At 5 stacks, a large curved blade appears on each of the shoulder pad spikes.
  - At 7 stacks, his forearms are lined with a curved blade that extends two large spikes.
  - At 10 stacks, his face becomes covered with a crown-like visor.
- With Nidus Prime:
  - At 3 stacks, black tendrils form on the left side of his face, as well as his entire left arm.
  - At 5 stacks, the tendrils extend to cover his chest and back.
  - At 7 stacks, the right side of his fleshy body becomes covered in a black mass as the golden metallic spikes on his right arm protrude outward, while tendrils form on his lower body.
  - At 10 stacks, the tendrils extend to cover his entire face and thighs.
- When stacks fall below the required triggers, Nidus' appearance will revert to the appropriate stage.

If Nidus suffers fatal damage with at least 15 stacks of Mutation, Nidus will consume the 15 stacks to avoid bleedout while receiving 5 seconds of invulnerability and restoring 50% of his health.

A UI banner displaying "Undying" and an invulnerability timer will appear at the top-center of the screen while this passive is activated. The required amount of Mutation stacks will be visibly subtracted from the counter and gauge.
If Nidus has fewer than 15 Mutation stacks, all stacks will be consumed without benefit.
If Nidus has 15 or more stacks while Quick Thinking is equipped, Undying will be given a higher priority, triggering before any energy is drained by Quick Thinking.

Main article: Abundant Mutation

Abundant Mutation is a Warframe Augment Mod for Nidus' passive that increases the amount of max stacks that he can carry but adds a cooldown of 30 seconds to his Undying passive.

Rank	Additional max stacks	Cost
0	+50	6
1	+100	7
2	+150	8
3	+200	9

Unlike most frames, when Nidus ranks up he receives a special set of rank bonuses which are indicated at the top-left of the Warframe Upgrade screen:

+20% / +40% / +60% / +80% / +100% / +120% / +140% / +160% / +180% / +200% Health at ranks 1 / 4 / 7 / 10 / 13 / 16 / 19 / 22 / 25 / 28 respectively.
+10% / +20% / +30% / +40% / +50% Armor at ranks 2 / 8 / 14 / 20 / 26 respectively.
+3% / +6% / +9% / +12% / +15% Ability Strength at ranks 3 / 9 / 15 / 21 / 27 respectively.
+10% / +20% / +30% / +40% / +50% Energy capacity at ranks 5 / 11 / 17 / 23 / 29 respectively.
5 / 7 / 9 / 11 / 13 Health regen per second at ranks 6 / 12 / 18 / 24 / 30 respectively.

This results in a total of +200% Health, +50% Armor, +15% Ability Strength, +50% Energy capacity, and 13 Health/s Regeneration at Rank 30.

Note that these bonuses are gained only by leveling up. Gaining Mutation stacks will not increase said bonuses.

Abilities

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Main article: Virulence (edit)

ENERGY: 40 KEY 1	Virulence Rupture the ground with a damaging fungal growth that steals energy from each enemy it strikes. For every five enemies hit, the Infestation mutates, multiplying its destructive force.	Strength:150 / 160 / 175 / 200 ( Puncture damage)
		Duration:N/A
		Range:10 / 11 / 13 / 16 m
		Misc:4 m (fungal growth width) 25% (energy refund rate per hit)

Nidus ruptures the ground to unleash a linear growth of fungal infestation 10 / 11 / 13 / 16 meters long and 4 meters wide toward the targeted location. Enemies struck by fungal growth are staggered, dealt 150 / 160 / 175 / 200 base damage amplified by the number of Mutation stacks accumulated, as well as refunding energy to Nidus for each enemy hit.
- Damage is affected by Ability Strength.
- Damage is 100% Puncture.
- Virulence's total damage uses the following expression when accounting for Ability Strength and Mutation stacks:
  $Amplified Damage = Base Damage \times (1 + Ability Strength rank bonus + Ability Strength) \times (1 + Number of Stacks)$
  - With a maxed Intensify, 15% Ability Strength rank bonus, and 100 stacks, rank-3 Virulence's total damage will be increased to:
    $200 \times (1 + 0.15 + 0.3) \times (1 + 100) = 29,290$ damage (decimals are rounded down to the nearest whole number during calculations).
- Energy refund is inversely affected by Ability Efficiency because it is always 25% of energy used to cast, per enemy.
- Fungal growth length is affected by Ability Range, while width is not.
  - Longer lengths will cover more ground faster, such that the casting time is very similar at all ranges. Negative ranges are slightly faster to cast.
Ability Synergy:
- Virulence increases Nidus's Mutation stacks by 1/5th per enemy hit.
  - Mutation gain per enemy is not affected by mods.
- While Nidus is connected to a target via Parasitic Link, using Virulence will spawn a second instance from the linked target that grows toward the targeted location, converging with the first instance from Nidus.
  - Enemies hit by the second instance also increases Mutation stacks.
- Maggots spawned from Ravenous will immediately explode when hit by Virulence, stacking with Ravenous' Mutation gain.
  - Virulence will also detonate maggots spawned by the Strain Mod Set, the Pathocyst, and Volatile Parasite.
Holding the ability key displays a rectangular range indicator on the horizontal plane in front of Nidus. Releasing the key casts Virulence. Range indicator color is affected by the chosen energy color.
- Player can move the aiming reticle while holding down the button to aim Virulence at the desired direction.
- While held, the player can still perform other actions such as moving, jumping, firing weapons, and casting other abilities. Releasing the key while in midair will exit range indicator mode without casting Virulence.
- While connected via Parasitic Link, a second range indicator visible to Nidus only will also appear around the linked target.
- While held, Maggots from Ravenous will be marked on the HUD, allowing increased visibility for selective detonation using Virulence.
Virulence will cast toward the targeted location regardless of Nidus' orientation.
If cast in midair, Nidus will instantly drop to the ground to perform this ability.
Cannot be recast until the fungal growth's maximum length is reached or until it cannot spawn any further due to obstruction. Therefore, Natural Talent and Speed Drift only affect the speed of Nidus' stomping animation.
Virulence does not spawn up or down high terrain elevations, but does flow up and down stairs and ramps.

Main article: Teeming Virulence

Teeming Virulence is a Warframe Augment Mod for Nidus that grants increased critical chance for Nidus' primary weapon upon hitting 4 enemies with a single use of Virulence.

Rank	Critical chance Bonus	Duration	Cost
0	+70%	9s	6
1	+85%	11s	7
2	+100%	13s	8
3	+120%	15s	9

Can stagger enemies to help keep them in place for recasts.
Can completely refund its cost when it hits at least 4 targets. 5 or more targets allow Nidus to earn extra energy.
- Due to the refund per hit always being kept at 1/4th the ability's cost, negative efficiency can be used to gain more energy over 4 hits at the cost of a higher initial cast cost.
Collect Mutation stacks to amplify Virulence's damage drastically over the course of a mission.
Hold the ability key to line up Virulence on groups of enemies before releasing to cast. This is an efficient method to gather extra energy and collect hits for stacks.
Use Larva to gather enemies in one spot, then unleash Virulence to optimize damage and stack collection.
Casting Virulence while Parasitic Link is active allows both Nidus and the linked target to create a line of fungal growths from your positions toward where you aim. This allows Nidus to effectively extend his reach on Virulence, and collect double hits for stacks if both lines hit the same enemies. Hold the ability key to help determine where you and your linked targets' lines will spawn.
Can detonate Maggots spawned from Ravenous by you and any Nidus players in your squad. Hits from both the fungal growth and maggot explosion each count toward the Mutation gauge. Blow up anyone's Maggots to help you and your brethren gather more stacks quickly!
If the fungal growth cannot spawn any further because of obstruction, you can immediately recast Virulence.
- Since the speed of fungal growth increases with length, having a high Ability Range means the growth will hit the obstruction faster, allowing for much faster recasting.

Main article: Larva (edit)

ENERGY: 25 KEY 2	Larva Spawn an Infested pod that erupts with tendrils, latches onto nearby enemies and pulls them in. Enemies killed while held have a chance of generating a Mutation stack.	Strength:N/A
		Duration:4 / 5 / 6 / 7 s
		Range:8 / 9 / 10 / 12 m (grab radius) 5.33 / 6 / 6.67 / 8 m (grab radius for subsumed version)
		Misc:50 % (Mutation stack chance) 3 s (unaffected targets release delay)
		Subsumable to Helminth

Nidus ejects an infested larva at high speed toward the targeted location over unrestricted range. Upon impact or reactivation by pressing the ability key again (default 2 ), the larva rapidly matures into a floating mass of infested tentacles that sprouts tendrils to grab all enemies within line-of-sight and a radius of 8 / 9 / 10 / 12 meters. Affected enemies are forcibly ragdolled and pulled into the mass, becoming unable to move or attack while grotesquely meshing together within the writhing whirlpool of flesh. Larva will wither away when it has no enemies to grip, is cast when no enemies are in range, or after 4 / 5 / 6 / 7 seconds have elapsed.
- Grab radius is affected by Ability Range.
- Duration is affected by Ability Duration.
- Grabbed enemies drop to the ground upon Larva expiration.
Ability Synergy: Each enemy killed from any source while being held by Larva have a 50%^[1] chance to generate 1/5th of a Mutation stack.
- Mutation stack chance are not affected by mods.
Enemies gripped by tendrils will float helplessly and rotate around the Larva, similar to the Vortex portion of Bastille and Sandstorm. Dealing damage or killing enemies in this mass can cause other affected enemies to bounce outward, swing wildly in an orbit, then be pulled back in.
If enemies cannot be ragdolled by Larva after being attached to tendrils, they will be released after 3 seconds.
Cannot be recast while active.
Larva is a One-Handed Action that allows movement and doesn't interrupt reload, but restricts other actions.
Enemies grabbed by Larva are alerted to the player's presence.
Enemies latched onto by its tendrils visually appear to be covered in infestation, while robotic targets appear encrusted in rust.
Subsuming Nidus to the Helminth will offer Larva and its augments to be used by other Warframes.
- However, Subsumed Larva's range is reduced to 5.33 / 6 / 6.67 / 8 meters.
- When Larva is injected onto a Prime Warframe, it will gain the appearance of Nidus Prime's Larva.

Main article: Larva Burst

Larva Burst is a Warframe Augment Mod for Nidus's Larva that allows the player to detonate Larva by recasting the ability, dealing Toxin damage proportional to the enemies trapped in Larva beforehand in a small area of effect.

Rank	Damage	Range	Cost
0	150	1m	6
1	200	2m	7
2	250	3m	8
3	300	5m	9

Combine with Virulence to deal high damage to multiple enemies and earn Mutation stacks quickly.
It is highly recommended to build for range to allow Larva to catch as many enemies as possible.
Weapons and abilities with splash damage and/or punch through can be used to quickly dispatch enemies stuck in Larva.
When Larva expires, enemies will drop to the ground and begin to recover from their ragdoll state. Recast Larva to immediately disable them again.
Combine with Ravenous to group up enemies for your Maggots to feast and explode on.
Maggots underneath or attached to enemies in this infested mass will hit all enemies when they are detonated by Virulence, dealing high damage and collecting hits for stacks very quickly as each explosion counts as 1 hit to all enemies in its splash radius.
Enemies linked to Ancient Healers are immune to the ragdoll and pull effects and are not disabled, but will remain attached to tendrils showing their positions.
Larva will attach to enemies affected by Bastille; however, it will not pull them.
Larva cannot be recast while active, meaning players should either build for low duration at the expense of Parasitic Link and Ravenous or try to maximize the amount of enemies caught by a single instance of Larva.
- It's possible to overcome this problem with the augment Larva Burst equipped, allowing players to cut Larva's duration short and react to situational changes more easily.

Main article: Parasitic Link (edit)

ENERGY: 0 KEY 3	Parasitic Link Bind to a target with parasitic link. When cast on an ally, both the host and Nidus have their Ability Strength increased. Linked enemies take some of the damage inflicted on Nidus. Mutation Stacks Cost: 1	Strength:10% / 15% / 20% / 25% (strength bonus) 20% / 30% / 40% / 50% (damage redirection)
		Duration:30 / 35 / 45 / 60 s
		Range:24 / 28 / 34 / 40 m (ally link) 10 / 13 / 16 / 20 m (enemy link)

Nidus expends a single Mutation stack to perform symbiosis with a targeted ally Warframe within 24 / 28 / 34 / 40 meters or parasitically link with a targeted enemy within 10 / 13 / 16 / 20 meters. The link persists as long as Nidus and his target remain in range of each other, lasting for 30 / 35 / 45 / 60 seconds or when manually deactivated by pressing the ability key again.
- Ally and enemy link range are affected by Ability Range.
- Duration is affected by Ability Duration.
- Parasitic Link does not require line-of-sight to maintain connection between Nidus and his target.
- If the target dies during cast before the link is attached, the single Mutation stack used for Parasitic Link will be refunded.
When linked with an ally Warframe, Nidus and his target both receive a 10% / 15% / 20% / 25% Ability Strength and damage bonus. When linked with an enemy, the target is completely disabled for the duration while Nidus transfers 20% / 30% / 40% / 50% damage received to the target instead; all knockdown, stagger, and negative status effects are also transferred from Nidus to the enemy target.
- Ability Strength bonus, damage bonus, and damage redirection are affected by Ability Strength.
- Parasitic Link's Ability Strength bonus affects Ability Strength multiplicatively using the following expressions:
  $Modified Strength Bonus = Strength Bonus \times (1 + Ability Strength)$
  - With a maxed Intensify and the 15% Ability Strength rank bonus, Nidus will have 145% Ability Strength, resulting in $0.25 \times (1 + 0.3 + 0.15) = 36.25%$ Modified Strength Bonus displayed on the UI.
    $Modified Ability Strength = (1 + Ability Strength) \times (1 + Modified Strength Bonus)$
  - Modified Strength Bonus then increases Ability Strength multiplicatively, granting $1.45 \times (1 + 0.3625) = 197.5625%$ Modified Ability Strength that affects Nidus' other abilities while a rank-3 Parasitic Link is active.
  - The Modified Strength Bonus is the same percentage for your linked ally. However, Modified Ability Strength's calculation will depend on your linked ally's own Ability Strength.
- Damage bonus is multiplicative to other damage buffs.
- Damage redirection is capped at 90%, achievable with an Ability Strength of at least 180%.
- Enemy target is invulnerable to outside sources of damage and immune to external crowd control effects while Parasitic Link is active, but is not immune to damage and crowd control effects transferred from Nidus. Damage from outside sources is accumulated and dealt to the target when the ability expires or is manually deactivated.
  - Friendly fire is not transferred to the linked target.
Ability Synergy: While linked to a target, using Virulence will spawn a second instance from the linked target that grows towards the targeted location, converging with the first instance from Nidus.
- Enemies hit by the second instance separately counts toward Mutation stack, even when the same enemies also get hit by the first instance.
Parasitic Link is a One-Handed Action and can be cast while in midair.
Nidus and the target are visibly covered in infestation and connected via a tether of biochemical energy, which is affected by the chosen Warframe energy color.
Cannot link to a target already affected by Parasitic Link. Multiple Nidus players cannot link to the same target, nor to each other while their own Parasitic Link ability is active.
When connected to another Nidus player, both players will use the Ability Strength bonus from the casting player; the link will break if the partner activates Parasitic Link on a different target.

Link with a nearby teammate or enemy for to create two lines from Nidus and the linked target. This effectively extends Virulence's reach, doubles its damage output, staggers enemies in its paths, collects more hits for stacks, and earns extra energy for the cost of one cast.

Linking with a teammate creates a mobile casting point that can relocate quickly to find new enemies.
Linking with an enemy provides a stationary casting point that allows you move around to adjust Virulence's travel direction and length.
Use Virulence's range indicator by holding 1 to determine the number of targets both lines will hit before releasing the button to cast.

Teammates with Warframes that possess high ability damage and Ability Strength-based effects are prime candidates for Parasitic Link.

Alternatively, the Ability Strength bonus allows allies to use more balanced builds instead of builds that focus solely on Ability Strength.

Enemies with high health and armor values such as Heavy Gunners can absorb a large amount of damage transferred from Nidus.

As long as Nidus and his target are in range of each other, Parasitic Link's biochemical tether will help you visually track your positions.

Before reviving a downed teammate, link with a nearby enemy to protect yourself from taking too much damage.

Linking with an enemy caught by causes it to become immune to damage from outside sources, which may hinder your crowd control ability because Larva will go through its full duration before you can recast it. Press 3 to manually deactivate the link, allowing you and your allies to kill the enemy to end Larva early for recast.

This immunity to damage can be beneficial for racking up the melee combo counter. Simply attack the target as many time as possible. Combine with combo mods like Blood Rush for best results.

Maggots from will ignore your linked enemy target. However, maggot explosions will still count as hits for the Mutation gauge even when they cannot damage the target. When you cast Parasitic Link on an enemy with maggots attached, the maggots will detach once the link is established.

Parasitic Link can be cast on the Juggernaut, and though it will not immobilize the Juggernaut it will still transfer damage to it, bypassing the Juggernaut's normally-impenetrable armor.

This can be done for most Boss enemies such as Acolytes, Kuva Liches, and Sisters of Parvos.

Can be used to immobilize Synthesis target, instead of deploying Kinetic Siphon Trap. This also prevents the target from being killed, accidentally or not, provided Nidus himself is not under heavy fire.

Parasitic Link can transfer negative Conduit Effects given in Disruption. For example, Energy Drain will drop from 5 energy per second to 1. This reduces, but does not negate, the threat of negative effects from conduits, should one fail.

Main article: Ravenous (edit)

ENERGY: 0 KEY 4	Ravenous Gluttonous maggots swarm nearby enemies, feasting until they burst with Infestation. The maggots benefit from Mutation and each enemy consumed adds to the Mutation stack. Mutation Stacks Cost: 3	Strength:100 / 110 / 125 / 150 (explosion Blast damage) 10 / 13 / 16 / 20 (health regen per second)
		Duration:25 / 30 / 35 / 40 s
		Range:4 m (explosion radius)
		Misc:8 m (ability diameter) 9 (number of maggots) 1000 (maggot health) 10 (maggot Toxin damage)

Nidus converts three Mutation stacks into ravenous Infestation, which spreads outward from Nidus and across the surrounding landscape to create spawning grounds with a diameter of 8 meters, lingering for 25 / 30 / 35 / 40 seconds. Nidus and his allies will regenerate 10 / 13 / 16 / 20 health per second when inside the spawning grounds.
- Health regen per second is affected by Ability Strength.
- Health regen buff area is an invisible cylinder, allowing eligible targets to retain the buff up to a height of 8 meters above the spawning grounds.
- Diameter and height are not affected by Ability Range.
- Duration is affected by Ability Duration.
- Ravenous' health regeneration is visible to players as a buff icon beside the shield and health indicators on the HUD, indicating the health regen rate.
- Affected allies includes all Warframes, Companions, Eidolon Lures, summoned allied units such as Specters, allied Invasion units, Hostages, Kavor Defectors, Sortie and Arbitrations Defense Operatives, and Defense Objects.
Infested cysts form on the spawning grounds, hatching up to 9 Maggots that seek out nearby enemies to feast upon. Once enemies are detected, Maggots frenzy with increased movement speed and leap toward their prey to latch onto them. While attached to an enemy, each Maggot will continuously stun its target and inflict 10 Toxin damage per second until the target dies or Maggot expires.
- Number of active Maggots and Toxin damage are not affected by Ability Strength.
  - The Toxin damage is, however, amplified by the number of Mutation stacks accumulated using the following formula: $Toxin Damage \times (1 + Number of Stacks)$
- Multiple Maggots can attach to the same enemy target simultaneously.
When Maggots are killed or are hit by Virulence, when their hosts die, or when Ravenous duration expires, Maggots explode to deal 100 / 110 / 125 / 150 Blast damage to all enemies within a 4 meter radius.
- Explosion radius is affected by Ability Range.
- Explosion damage is affected by Ability Strength and the number of Mutation stacks accumulated.
  - For example, a rank-30 Nidus with a maxed Intensify equipped and 50 Mutation stacks will have an explosion damage of:
    Base Explosion Damage × (1 + Ability Strength rank bonus + Strength Mods) × (1 + Number of Stacks) =
    150 × (1 + 0.15 + 0.3) × (1 + 50) = 11,092.5
    - Due to the total damage calculation accounting for Mutation stacks after the cost of Ravenous, it is not possible to reach amplified damage results above 97 Mutation stacks.
Health regen per second and Maggot explosion and Toxin damage are calculated and predetermined when Ravenous is cast. All three will not be recalculated if any changes in Ability Strength and Mutation stacks occur while Ravenous is active.
Ability Synergy:
- Maggots hit by Virulence will immediately explode.
- Exploding Maggots increases Nidus's Mutation stacks by 1/5th per explosion per enemy hit.
  - Mutation gain per enemy is not affected by mods.
  - If the maggot host dies to the maggots or Virulence, the host and any nearby enemy will count towards Mutation. This stacks with Virulence's Mutation gain per enemy hit.
  - If the maggot host dies to other sources, the host itself is not an eligible target and will not count towards Mutation.
Has a casting time of 1.5 seconds.
Ravenous can be recast while active.
- Only one instance can be active at a time.
- Recasting Ravenous while on the spawning grounds will refresh its duration without relocating it.
  - Upon refresh, timer on the ability icon will continue countdown from previous remaining duration to 0, but spawning ground will not vanish until the newly refreshed duration expires.
  - Maggot explosion and Toxin damage and health regen rate will not be recalculated if an instance of Ravenous is recast.
  - Due to Ravenous' casting time, players will have to recast at least 1.5 seconds before the duration ends to maintain the old instance.
- Recasting Ravenous away from an active spawning ground creates a new instance at the new location while removing the older instance.
  - Maggot explosion and Toxin damage and health regen rate are recalculated if a new instance of Ravenous is created.
Maggots and spawning grounds possess unique properties as independent entities from Nidus:

Maggots possess a base health of 1000 and draw enemy aggro.
- Maggot health is not affected by Ability Strength or the number of Mutation stacks accumulated.
Maggots have their own rank.
- Maggot rank is identical to Nidus' rank (e.g., a rank-25 Nidus' Maggots will be level 25).
- Currently it's not known what effect the maggots' rank has.
Maggots are considered friendly to the Tenno.
When Maggots cannot attach to enemies, they will instead bite or seek other enemies to latch on to.
Maggot lifespan is tied to the duration of the ability, during which they will actively seek out enemies or wander around or away from the spawning grounds.
Maggots will automatically explode when killed, when Ravenous' duration expires, when their hosts die, or when detonated by Virulence.
On death, Maggots respawn from cysts throughout the duration of Ravenous, up to the maximum number of 9 active Maggots.
Maggots will not attach to small enemies, such as a Brood Mother's Maggots and Kuva Jesters.
Maggots use a custom model to differentiate them from a Brood Mother's Maggots.
- Nidus maggots are affected by his chosen Warframe energy color.
After casting Ravenous, there will be a 4 second delay before the Maggots start running towards/attacking nearby enemies.
Maggots are not affected by Strain Mods.

Spawning grounds is created at the location where Nidus casts the ability.

Spawning grounds' infestation does not expand up or down high terrain elevations, but does flow up and down stairs and ramps.

Within the spawning grounds, various unique models will spawn for visual representation only. Players and AI can path through them unhindered.

Textures on the ground are blended with an infestation mesh.
Three infested nests erupt on the edges of the infestation, positioned in triangular vertices. Nests glow, pulsate, and emit spore particles, which are affected by the chosen energy color.
- Nests also serve to maintain the Infestation. If a Nullifier bubble comes in contact with a nest, it will dissipate; when all three infested nests are dissipated, Ravenous will expire automatically.
Numerous patches of infested flora resembling tall grass encompass the ground, rustling when brushed past by players and AI while glowing in the chosen energy color.
Several infested branches sprout from the infestation to attach to nearby walls and objects in vertical and diagonal axis. Branches glow in the chosen energy color.

Main article: Insatiable

Insatiable is a Warframe Augment Mod for Nidus's Ravenous that grants him a chance to generate an additional Mutation stack when gaining one while standing on the spawning grounds.

Rank	Bonus Mutation stack chance	Cost
0	35%	6
1	40%	7
2	50%	8
3	60%	9

Energy Conversion and/or Growing Power synergize well with Ravenous, especially if players are planning on camping a specific area as players will only need to cast Ravenous once with either's buff active and simply refresh Ravenous' duration to keep the buffed maggot damage and health regen rate active.
Constantly detonating Maggots using Virulence helps maximize damage output and Mutation gained as Maggots will continuously respawn throughout the duration of Ravenous.
Maggots can pick up motes from Wisp's Reservoirs ability.

Strength Mods	Duration Mods	Range Mods

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↑ https://forums.warframe.com/topic/1279280-kill-stealing-and-the-mechanics-that-suffer-from-it/page/3/?tab=comments#comment-12280351

[1] Devstream #102

[2] ttps://forums.warframe.com/topic/1279280-kill-stealing-and-the-mechanics-that-suffer-from-it/page/3/?tab=comments#comment-12280351

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