Corrosive Damage

• Inaros becomes immobile and converts his health into Scarab Armor, which permanently increases his base armor by up to 100%. When the ability is charged by holding down the ability key, Inaros loses 29 points of health for every 1% of converted additional bonus armor, for a total of 2,900 health lost to fully charge the armor. Inaros will continue in the animation until releasing the ability key or Inaros only has 2 points of health left but the health drain will stop once the bonus armor has reached 100%.
  • Health to armor bonus conversion rate is not affected by Ability Efficiency.
  • The armor bonus is an additive to armor mods; with a fully charged Scarab Armor (100%) and a maxed rank  Steel Fiber, Inaros will have a total armor value of:
    200 × (1 + 100% + 110%) = 620
  • Armor bonus is not affected by Ability Strength.
  • Charging Scarab Armor causes Inaros to lose all momentum.
  • Inaros is immune to stagger, knockback, and knockdown effects while charging Scarab Armor.
  • The current bonus armor value is displayed on the ability icon and also beside Inaros' health indicator.
  • Scarab Armor can be removed by casting a swarm projectile, entering a Nullifier bubble, moving too close to a Comba or Scrambus, by being dispelled, or falling into a pit. Scarab Armor bonus can not be removed by enemy weapons fire.
  • When Scarab Armor is dispelled, all health previously converted into armor is instantly refunded to Inaros, provided his health is not at maximum value.
• While Scarab Armor is active and an enemy target is near the aiming reticle, Inaros can consume 25 energy and convert 25% of his total armor bonus into a Swarm Projectile by tapping the ability key.
  • Energy cost is affected by Ability Efficiency.
  • A Swarm Projectile can not be launched if Scarab Armor value is below 25%.
  • The Swarm Projectile is launched near the end of the casting animation, giving the player time to adjust the trajectory before the animation ends.
  • Launching a Swarm Projectile on an enemy that is still under the effects of another Swarm Projectile, will not refresh the debuff.
  • The Swarm Projectile possesses innate Punch Through but does not bypass obstacles in the environment.
• Once in flight, the Swarm Projectile travels up to 20 / 22 / 25 / 30 meters away before dissipating, infesting all enemies with scarabs on contact. Swarmed enemies will flail in panic and receive 100 / 150 / 175 / 200 Corrosive damage per second for 6 / 10 / 12 / 15 seconds, during which they cannot move or use special abilities, but can periodically attack. Each swarm host generates an aura with a 6 / 10 / 12 / 15 meter radius that converts damage dealt by Scarab Swarm into health for Inaros and his allies in range. Scarab Swarm can spread all of its effects to any unaffected enemies within a 5 meter radius from a swarm host for 100% of its remaining duration.
  • Damage and healing per second are affected by Ability Strength.
  • Duration is affected by Ability Duration.
  • Casting range and healing radius are affected by Ability Range, while spread range is not.
• Swarm Projectile cast animation of 1.25 seconds is affected by  Natural Talent and  Speed Drift. Charging scarab armor or launching scarab attack while stationary will prevent movement, however casting scarab attack while moving will not interrupt movement.

Main article: Negation Swarm

Negation Swarm is a Warframe Augment Mod for Inaros that allows Scarab Swarm to block incoming Status Effects, draining a percentage of bonus Armor for every Status Effect blocked.

• It is more energy efficient to cast a Scarab Swarm attack on a single enemy in the middle of a large, clustered group, and allowing the swarm spreading effect to infect all nearby enemies. This is particularly effective against Infested that naturally tend to clump together in groups.
• Players can get Scarab Swarm dispelled on purpose, such as by running into a Nullifier bubble, to instantly get up to 2,900 points of health back.

• Revenant unleashes the might of the Eidolon essence emanating from his left arm, dispersing the Sentient energy into 9 energy beams as he levitates and spins counterclockwise. Energy beams oscillate in angle vertically as Revenant rotates, rapidly sweeping across a 100 meter radius area with rotation speed 1 rev/sec in a pentagonal shape. Each energy beam has a thickness of 0.03 / 0.05 / 0.08 / 0.1 meter radius and continuously inflicts 500 / 750 / 1,000 / 1,250 damage per second with a 20% status chance to all enemies caught in its path.
  • Damage per second is affected by Ability Strength.
  • Beam radius is affected by Ability Range.
  • Casting speed is affected by  Natural Talent and  Speed Drift.
  • Rotation speed is unaffected by mods.
  • Number of energy beams and sweep area are not affected by mods.
  • Energy beams possess innate Punch Through, allowing them to bypass terrain and obstacles in the environment.
  • Energy beams cannot hit enemies standing above Revenant's left arm due to the oscillation pattern.
  • While active, all damage received by Revenant is stored into a total damage pool, then gradually transferred to each energy beam as additional damage per second.
  • Damage stored is tracked by the buff icon beside the shield and health bars.
  • Revenant is able to move with reduced movement speed while channeling Danse Macabre. Speed the same as Revenant's running speed (without sprint) and affected only by Hobbled Dragon Key.
• Holding the fire button (default LMB ) increases the beams' damage per second to 1,000 / 1,500 / 2,000 / 2,500, status chance to 40%, and beam radius to 0.05 / 0.1 / 0.15 / 0.2 meters, while also increasing energy drain to 40 energy per second.
  • Boosted damage per second is affected by Ability Strength.
  • Boosted beam radius is affected by Ability Range.
  • Boosted energy drain is affected by both Ability Efficiency and Ability Duration.
• Energy beams autonomously adapt their damage type to the attributes of the enemies they hit: Corrosive against armored enemies, Magnetic against shielded enemies, and Gas against enemies with infested flesh.
  • Corrosive status effect permanently reduces a target's current armor by 25%.
  • Magnetic status effect reduces a target's current and maximum shields by 75% for 4 seconds.
  • Gas status effect spawns a toxic cloud that deals Toxin damage and procs a Toxin status to enemies who stand in it.
• Danse Macabre consumes 20 energy per second while active and will remain active until Revenant's energy is depleted, or the ability is deactivated by pressing the ability key again.
  • Activation energy cost is affected by Ability Efficiency, and the energy drain is affected by Ability Efficiency and Ability Duration.
  • Revenant cannot replenish energy using Energy Vampire, Rift Plane's innate energy regeneration, Squad Energy Restores,  Energy Siphon, or Energizing Dash while Danse Macabre is active.
  • Danse Macabre's energy drain is not converted into shields by Augur Mods.
  • Energy can be replenished by Energy Orbs, Arcane Energize, Orokin Void Death Orb energy restores,  Rage, and/or  Hunter Adrenaline while the ability is active.
• Ability Synergy:
  • Enthralled enemies killed by this ability drop a unique pickup that grants 50 Overshields when collected by Revenant or his allies.
  • Energy pillars explode to inflict damage radially when struck by Danse Macabre lasers.
  • Damage reflected by Mesmer Skin also accumulates into Danse Macabre's energy beam damage pool.
  • Reave has 50% reduced energy cost and can be cancelled at any time during Danse Macabre. Casting speed becomes instantaneous and allows limited steering with the movement keys during the dash.
• Revenant cannot cast Enthrall or Mesmer Skin, perform parkour Maneuvers or general interactions while channeling this ability.
• Revenant is immune to knockdown while channeling this ability.
• Casting Danse Macabre is a full body animation that interrupts grounded movement and other actions.
• Revenant visually extends his left arm outward and his right arm upward, as he hovers and rotates in place. Energy beams are generated and spread throughout his left arm, while droplets and gaseous energy particles emit from both hands. When the fire button is held, a surge of Sentient energy resembling Enthrall's energy pillars continuously erupt skyward from beneath Revenant's feet.
• Energy beams, energy particles, and energy surge color tinting are affected by Revenant's chosen Warframe energy color.

• Saryn infects an enemy target within 30 / 40 / 50 / 60 meters with 2 / 2 / 3 / 3 virulent spores for an unlimited duration. Each individual spore inflicts Corrosive damage per second with a 50% Corrosive status chance, lasting until the spores themselves or the infected enemy is destroyed.
  • Cast range is affected by Ability Range.
  • Status chance is affected by Ability Strength.
  • Spores duration and number of initial spores are not affected by mods.
• Saryn's disease spreads its infection rapidly, grows evermore lethal, and decays in the absence of hosts over the course of the epidemic:

• If Spores is still active, recasting Spores on any enemy consumes 20% of current damage per second from the infection meter and casts Spores for 50% reduced energy cost. Recasting on an infected enemy grows a new set of spores on the target, which carries up to 12 spores via recasting Spores on it.
  • Reset decay is inversely affected by Ability Strength (e.g., more strength reduces amount consumed.)
  • Recast energy discount and max spores per enemy via recast are not affected by mods.
• All spores destroyed via melee weapon contribute to the melee combo counter.
• Ability Synergy:
  • Toxic Lash can make spores burst with every attack, even without direct hits.
  • Miasma deals 400% damage to enemies affected by Spores.
• Spores is a one-handed action. As such, it can be used while performing various maneuvers and actions without interruption.
• If the initial target dies before the spores appear, energy used for Spores will be refunded.

Main article: Venom Dose

Venom Dose is a Warframe Augment Mod for Saryn that allows Spores to be held on cast, creating a wave of energy traveling outward from the user that temporarily grants the caster and nearby allies additional Corrosive damage to all attacks.

Rank	Corrosive Damage	Duration	Range	Cost
0	50%	28s	15m	6
1	65%	32s	15m	7
2	80%	36s	15m	8
3	100%	40s	15m	9

• Cast on an enemy in the middle of a crowd and promptly kill it or use one of the many methods to spread the spores.
• Each spore inflicts damage per second and Corrosive status effect on proc, which is tripled on an enemy carrying three spores from a max rank Spores cast or accumulated from transmission from other infected enemies.
• Infect at least 7 enemies to maximize damage growth, allowing Spores to reach higher damage per second counts over time.
• Mod for Ability Strength to increase initial damage, damage growth per enemy, status chance, while reducing the reset decay on recast or on zero infected present.
  • Status chance can reach 100% with 200% Ability Strength.
• Recast Spores several times to inflict an enemy with up to 12 spores to strip its Armor quickly, deal more damage per second instances, and provide more spores to spread.
  • However, note that each recast will consume a percentage of damage per second stored in your infection meter.
• Using melee to hit enemies makes it easier to burst spores, compared to firearms, especially with Range mods, e.g.  Reach ( Primed).
• Use Toxic Lash to spread spores on an infected enemy on every hit using your gun or melee.
• Cast Miasma to inflict quadruple damage to all enemies infected by Spores within range.
• Can be used to destroy Corpus cameras and (active) turrets. A spore will appear but a camera dies on the first tick.
• When combined with AoE weapons (such as Ignis and Embolist, which both deal DoT, increased by Saryn's passive), the spores will pop very easily, quickly spreading Corrosive procs.
• The ability synergizes well with Nova's Molecular Prime, both spreading and weakening enemies until one dies and causes a series of chain explosions and effectively quartering enemy survivability.
• Spores is excellent for bosses with shields to prevent them from recovering.
  • This is quite effective against Ambulas since it targets the torso and, like all MOAs, he takes three times damage on that body part.
• Sentinels can also pop Spores.
  • Equipping a sentinel with the Sweeper weapon increases this chance.
• Spores that are popped on a target's weak point, like the head, will do extra damage based on the respective damage multiplier.
  • For example, if you pop a Spore on an enemy's head, it will deal 50 damage (25 x 2 damage multiplier).
  • Spores' DoT ticks are unaffected by weak spots.
  • AoE damage from popping spores is unaffected by weak spots. Nearby enemies will still only take 25 Corrosive damage from popped spores on weak spots.