Devouring his prey whole, Grendel slowly digests the enemies he swallows via Feast. Each enemy still alive in Grendel's belly passively grants him 250Armor, to a maximum of 1,250 bonus armor at the 5 enemy cap.
Passive bonus value is displayed above Grendel's ability icons.
Gourmand provides an additional 150 armor bonus per enemy at max rank to Grendel's passive, increasing the armor bonus to 400 per enemy and the total armor bonus to 2,000 at enemy cap.
Armor bonus is added after armor mods such as Steel Fiber. For example, Grendel with a rank 10 Steel Fiber and one enemy alive in his belly will have Total armor = (350 × (1 + 1.1)) + 250 = 985
Armor bonus adds or subtracts depending on the number of enemies currently residing in Grendel's stomach.
Abilities []
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Misc:
2% (damage per second) 1.5 s (maw open duration) 1 s (maw open extra duration per enemy) Toxin status on vomit 8 m (vomit cone range) 5 (Max enemy body count)
Grendel expends 25energy to open his maw agape for 1.5 seconds, creating a powerful vacuum that disintegrates enemies near the aiming reticle within 25 meters and swallowing them whole to trap them inside Grendel's stomach. For each enemy swallowed by Feast, Grendel's maw stays open for an extra 1 second. Enemies within Grendel's stomach are slowly digested at a rate 2% of their total shields and health per second. A maximum of 5 enemies can be held within Grendel's stomach.
Grendel can swallow multiple enemies by moving the aiming reticle to mark new targets with Feast, while his maw is still open.
The five eaten enemies' profile icons and their remaining hitpoints are displayed as circular gauges, aligned in a cross-shape UI indicator above Grendel's ability icons.
Feast also vacuums Pickups and thrown Hand Grenades near the aiming reticle for Grendel. Swallowed grenades will detonate inside Grendel's stomach and only damage nearby enemies.
Enemy auras such as Ancient Healer or Guardian Eximus are disabled while within Grendel's stomach.
Hold down the ability key (default 1 ) to violently vomit all stored enemies out for no energy cost, inflicting 250 / 300 / 400 / 500Toxin scaling damage with a 100%Toxin status chance to vomitted enemies and other enemies within 8 meters in a cone in front of Grendel.
Toxin damage on vomit is affected by enemy level and amount of enemies stored.
Feast's Toxin damage on vomit benefits from sum of enemies levels stored using the following expression:
Total Toxin Damage = Toxin Base Damage × ((ΣEnemy Level - 1) / 15 + 1)
With 5 eaten enemies at level 101, Grendel will deal 500 × ((101 × 5 - 1) / 15 + 1) = 17,300Toxin damage on vomit. Resulting damage is rounded down to the nearest whole number.
Feasting on enemies affected by Nidus' Parasitic Link will erase them completely.
Bosses cannot be Feasted.
If Grendel crosses a Nullifier or falls out of bounds, enemies in his stomach are automatically expelled.
Feasted enemies are considered removed from play, removing them from Exterminate waypoints and allowing Defense waves to advance, even if they are still alive.
The Circuit's Corrupted Jackal still requires Feasted enemies to be vomited and killed to progress the fight.
Ability Synergy:
Grendel's passive grants him 250armor per enemy alive in his stomach.
Grendel must have at least 1 enemy alive in his stomach to cast Nourish and Regurgitate.
Pulverize drains 0 energy if he has enemies in his stomach. The sphere also enlarges with engorged enemies, increasing the collision and ground slam's damage and radius.
Volatile Runners swallowed by Grendel’s Feast have a tendency to explode from within, causing Grendel to stagger.
Increasing the Ability Range of Grendel’s Feast increases the effective Vacuum Range, this is especially useful for survival since feast can be used to Vacuum Life Support pickups from a fair distance without having to leave the current room.
Regenerate health as Grendel absorbs nourishment from enemies in his gut. While he digests, enemies that attack or are attacked by Grendel suffer Viral Damage and energy sources provide more energy. These buffs extend to squad mates.
Grendel expends 50energy to damage to the first digested victim equal to 20% of their total shield and health points, heal 600 / 700 / 800 / 1000Health, and receive a buff that affects all allies within 10 / 15 / 20 / 25 meters for 10 / 15 / 20 / 25 seconds. This buff has three separate effects:
All energy sources provide 1.5x / 1.65x / 1.8x / 2.0x more energy.
Taking damage causes an explosion with a 12 meter radius that deals 100 / 150 / 200 / 250Viral damage with 10Viral stacks and Stagger to enemies within line of sight. This explosion has a 2 seconds cooldown.
Adds +40% / +50% / +60% / +75%Viral damage to all weapons.
Retaliation waves damage and break destructible Objects such as crates and resource caches.
Ability Synergy: Nourish requires at least 1 enemy swallowed by Feast to be alive in Grendel's gut to cast.
Can be recast while active, inflicting damage to the eaten enemy, healing Grendel, buffing new allies in range, and refreshing the buff's duration.
Subsuming Grendel to the Helminth will offer Nourish and its augments to be used by other Warframes.
Other Warframes are omitted from the swallowed enemy requirement, due to their inability to cast Feast.
However, Subsumed Nourish does not provide healing, the explosion only applies 1Viral stack, the energy multiplier is reduced to ? / ? / ? / 1.6x, and Viral weapon bonus damage is reduced to +?% / +?% / +?% / +45%.
Grendel curls into a ball. He heals over time as he rolls, knocking over anyone in his path. Jumping slams Grendel into the ground and generates a damaging shockwave.
Grendel curls up into a roving sphere that changes his movement controls into a directional physics-based roll. As he roves, Grendel gorges upon enemies inside his stomach, inflicting 25Toxin damage per second while healing him 50 / 100 / 150 / 200 health per second over 5 seconds which slowly diminishes to half its value after another 5 seconds.
Grendel can only perform a limited selection of parkour Maneuvers, such as sprint, jump, double jump, and wall jump during Pulverize.
Grendel is unable to utilize weapons and cannot cast any Helminth subsumed abilities during Pulverize.
Activating the ability to enter the sphere form will cause Grendel to automatically drop carriables, such as datamasses.
Grendel will accelerate faster when rolling downhill and ricochet off of terrain obstacles.
Grendel tramples over his enemies with varying levels of power and reach, depending on the techniques he uses and the fuel within.
In sphere form, Grendel constantly emits a kinetic field with a 2.5 - 5 meter scaling radius, which reacts to his movement to inflict 250 - 1,000 / 250 - 1,200 / 500 - 1,500 / 500 - 2,000Impact damage and permanently removes 20% / 30% / 40% / 50%armor against enemies coming into range. Enemies colliding with Grendel receive damage and are knocked away from his path.
Impact damage on collision benefits from Ability Strength and amount of enemies stored, increasing by +60% per stored enemy, up to 400% effect with 5 stored enemies.
With a maxed Intensify, 5 eaten enemies, Grendel will deal 500 × (1 + 5 × 60%) × (1 + 0.3) = 2,600Impact damage.
Armor is fully removed at 200% Ability Strength.
Impact damage on collision does not occur if Grendel is stationary.
Damage and radius changes as enemies enter and exit Grendel's stomach. His sphere model also enlarges and shrinks based on the eaten enemy count.
Landing on surfaces from midair causes Grendel to slam into the ground, inflicting 50 - 200 / 100 - 300 / 100 - 400 / 150 - 500Impact damage to enemies within a 2 - 6 / 3 - 8 / 4 - 10 / 5 - 15 meter scaling radius, including those in his gut.
Enemies within the slam radius have their armor reduced by 20% / 30% / 40% / 50%, however enemies in his gut will not have their armor reduced.
Impact damage on ground slam benefits from Ability Strength and amount of enemies stored, increasing by +70Impact (+46.6%) per stored enemy up to 500Impact damage (333% effect).
With a maxed Intensify, 5 eaten enemies, Grendel will deal (150 + 5 × 70) × (1 + 0.3) = 650Impact damage.
Damage and radius change as enemies enter and exit Grendel's stomach.
Pulverize costs 0energy to activate. While active, Pulverize drains 3 energy per second on an empty stomach to maintain his sphere form until deactivated manually by pressing the ability key again (default 3 ) or automatically when Grendel runs out of energy, reduced to 0 energy per second if Grendel has at least one enemy in his stomach. Should Grendel run out of energy during Pulverize, he will automatically unfurl and become stunned in a dizziness animation for 2 seconds.
While Pulverize is active, but not draining energy, Grendel can replenish energy using Rally Point, Energy Siphon, and Wellspring. If Grendel has no more enemies in his stomach the energy replenishment from these effects will halt until he refills his belly.
Ability Synergy: Pulverize drains 0 energy when Feast stores enemies in his stomach. The sphere also enlarges with engorged enemies, increasing the collision and ground slam's damage and radius.
Grendel convulses his stomach as his maw snaps open, expending 50energy to violently expel out an eaten enemy soaked in acidic bile from inside his gut. The enemy is Ragdolled and launched toward the aiming reticle as a living projectile, traveling at a speed of ? meters per second in an arcing trajectory. On direct collision with other enemies, obstacles or surfaces, the launched enemy and all targets within a radius of 3 / 4 / 5 / 6 meters around the impact point suffers 1,000 / 1,250 / 1,600 / 2,000 damage plus 10% of the launched enemy's current health as Toxin damage with 100%Toxin status chance, are slowed by 80% which slowly diminishes over 6 seconds, and permanently removes 75% of their armor.
Regurgitate's damage on enemy impact and radial Toxin damage benefits from Ability Strength and enemy health using the following expression:
Total Toxin Damage = Toxin Damage × (1 + Ability Strength) + 10% × Current Enemy Health
With a maxed Intensify and an eaten enemy with 38,670 health, Regurgitate will deal 2,000 × (1 + 0.3) + 10% × 38,670 = 6,467Toxin damage.
Armor is fully removed at 134% Ability Strength.
Ability Synergy: Regurgitate expels out the next available enemy swallowed by Feast, requiring at least 1 enemy inside Grendel's gut to be cast.
Grendel slowly digests the enemies he swallows via 
Feast. Each enemy still alive in Grendel's belly passively grants him 250 Armor, to a maximum of 1,250 bonus armor at the 5 enemy cap.
Gourmand provides an additional 150 armor bonus per enemy at max rank to Grendel's passive, increasing the armor bonus to 400 per enemy and the total armor bonus to 2,000 at enemy cap.
25
Strength:250 / 300 / 450 / 500 (
Toxin damage on vomit)
Duration:N/A
Range:25 m (swallow range)
Viral damage on hit)
Impact damage on collision)
