Shield Drain Damage is a hidden, unique damage type which has neutral damage modifiers against all enemy shield types. This damage type applies damage to shields and overguard. It is applied only by certain Warframe abilities.
Hildryn expends 150shields or overshields to emit a radial pulse with an initial radius of 5 / 6 / 7 / 8 meters, which follows her as an aura and rapidly expands outward by ? / ? / 6 / 20 meters per second over a duration of 2 seconds. Hildryn and allies touched by the expanding pulse are instantly cleansed of all negative Status Effects. Enemies in direct line of sight of Hildryn and within range of her aura are marked for pillage, reducing their current Shields or total Armor by 10% / 15% / 20% / 25%. When Pillage expires or when the ability key (default 2 ) is pressed again while the ability is active, the pulse instantly retracts to Hildryn to restore her missing shields and produce Overshields based on the amount of shields and/or armor stolen from all pillaged enemies.
Roar, Magnetic procs, and enemy weakspots on the "chest" area will increase the shield strip, but not shield return or armor strip.
Enemy armor and shields are fully removed at 400%Ability Strength. With one Corrosive Projection, armor will be fully stripped at 328% Ability Strength.
Shield strip removes a percentage of the current maximum value, as such it has diminishing returns on subsequent casts against the same enemies. Armor strip, however, is a percentage of an enemy's total, requiring four casts at base strength to fully strip.
Does not steal from enemies without shields or armor stats.
Enemies that possess both shields and armor will need to have their shields broken before armor can be pillaged.
Pillaged enemies leaving Pillage's pulse and/or Hildryn's line of sight will still return shields to her.
Casting Pillage is a full body animation that stops Hildryn's grounded movement and other actions.
Pillage cannot be cast while Aegis Storm is active.
Hildryn's shoulder-mounted shield pads briefly become visible when Pillage is cast.
Enemies affected by Pillage glow in an upward stream of energy particles. Pillaged shields return to Hildryn as energy missiles once the ability expires or is recast while active.
Pulse, energy stream, and energy missiles are affected by Hildryn's chosen Warframe energy color.
Subsuming Hildryn to the Helminth will offer Pillage and its augments to be used by other Warframes.
Subsumed Pillage uses 50 energy instead of shields.
Similar to Molecular Prime, ability duration is far more effective at increasing this ability's range than ability range itself. Increasing duration also provides more time for Hildryn to move around and tag enemies with the aura.
Modding for Corrosive Projection or Shield Disruption is useful in certain scenarios, as the armor/shield strips are additive with Pillage. For example, the 18% reduced armor from Corrosive Projection equates to 72% power strength that is no longer needed, bringing down the power strength requirement for a full armor strip from 400% to 328%.
Bugs
Visually, the ability only expands at 17-17.5 meters/second, but actually expands at 20 meters/second
Kullervo sends forth a curse that binds enemies. When a cursed enemy takes damage from him, every other cursed enemy also suffers a portion of that damage.
Kullervo expends 75Energy to cast forth a misty wave in a 65 degrees cone that spreads across a distance of 20 / 22 / 23 / 25 meters. Enemies caught in the mist and in Kullervo's line of sight receive a Stagger and Knockback effect, becoming shackled and linked to each other by cursed chains lasting for 10 / 15 / 20 / 25 seconds. Any weapon or ability damage inflicted by Kullervo himself to a cursed enemy is spread to other cursed enemies at 20% / 30% / 40% / 50% of the initial damage instance.
Damage redirection is capped at 100%, achievable with 200%Ability Strength.
Damage spread deals True Damage or Shield Drain Damage depending on whether the initial target's health or shields were damaged.
Damage spread by Collective Curse ignores armor, but is still affected by units with innate Damage Reduction.
Damage spread by damaging the initial target's shields will only damage shields on linked enemies; Damage spread by damaging the initial target's health will only damage health on linked enemies.
Damage from Wrathful Advance, Recompense, and Storm of Ukko spread to other cursed enemies when striking an enemy under Collective Curse.
Can be recast while active to curse a new group of enemies and refresh duration to full on cursed enemies. Only the enemies cursed by the same instance spread damage to each other.
Casting Collective Curse is an upper-body animation that allows movement and Maneuvers while restricting other actions.
Collective Curse is not dispelled by Kullervo entering an ability nullification zone or falling out of bounds. Each individual enemy must enter a null zone to dispel their curse. While standing inside a null zone, Kullervo may still spread damage to cursed enemies by attacking a cursed target.
Tips & Tricks
Striking multiple enemies through Punch Through or area of effect weapons will spread its damage across all cursed enemies. For example, an attack dealing 100 damage upon striking 5 cursed enemies at maximum damage redirection will deal 500 damage to each enemy.
Emit an energy pulse that depletes enemy shields and armor as it restores ally shields. Debris left over from the pulse becomes Polarize Shards. Nearby Polarize Shards orbit Mag and cut enemies, inflicting bleed status.
Mag expends 75energy to emit a spherical pulse of magnetic energy from herself with an initial radius of 8 meters. The pulse expands outwards for 5 seconds, at a constant rate of 5.9 meters per second, reaching a total radius of 37.5 meters. If the pulse comes into contact with an enemy that has shields, the pulse will drain up to 250 / 300 / 350 / 400 of them. If the enemy has armor, it will be permanently drained by up to 250 / 300 / 350 / 400 points with the enemy additionally suffering True damage equal to the amount removed. Any allies that come into contact with the pulse will have their shields restored by up to 250 / 300 / 350 / 400.
Initial radius and traveled distance are summed to: Total Radius = (1 + Ability Range) × 8 + (1 + Ability Duration) × 5 × 5.9.
With maxed Stretch and Continuity, rank-3 Polarize will have a total radius of (1 + 0.45) × 8 + (1 + 0.3) × 29.5 = 49.95 meters.
Cast animation of 1 second, affected by Casting Speed.
Shields must be completely drained from a target before a new Polarize cast can deplete armor as well.
All drained enemies will produce a violent outburst of magnetic energy inflicting 100% / 150% / 200% / 250% of the drained shields or armor as Magnetic damage to all other enemies within a 2.5 / 3 / 3.5 / 4 meter radius of them.
Explosion damage diminishes with distance.
Damage bypasses obstacles in the environment.
Explosion radius is increased by 0.5̅5 meters for each meter the pulse grows outwards after the initial radius.
Explosion can hit objects, such as Containers and Resource Nodes.
Enemies who have been drained are not damaged by their own explosion, but they can be damaged by nearby enemies who were also drained.
All drained enemies drop one Polarize Shard that lingers for 30 seconds, with a 50% chance to drop two. These Shards are automatically picked up by Mag once she is within 3 meters of them, and will rapidly orbit her to attack enemies within 1 meter. Polarize Shards inflict 50 damage distributed evenly between Puncture and Slash, scaling with the total shields or armor drained, and with a guaranteed status effect.[1]
Shard damage is affected by total shields or armor drained, gaining 25% of the total drained value as damage.
Magnetize will absorb Polarize Shards, trapping the Shards within and allowing them to do immense damage.
Shards will return to their previous state when Magnetize ends.
Polarize's visual effects, including shards, are affected by Mag's chosen energy color.
Casting Polarize is a One-Handed Action that can be done while performing many actions without interrupting them, including reloading, charging, shooting, and moving (either sprinting or sliding).
Can be used in mid-air, but not while on a zipline.
Can be used to restore shields to stationary defense objectives such as Cryopods and Excavators.
Explosions can damage or break objects such as Containers, Resource Nodes, Laser Plates, and Rotation Plates in the Orokin Tower, given a drained enemy was close enough to them.
Shards can inflict high amounts of Slash procs, if used in conjunction with Magnetize they can cause immense Bleed damage.
Pairing this combo with Nourish will grant Shards Viral damage and status, allowing you increase their Bleed damage even further.
The damage portion of Polarize is useless in missions where enemies completely lack shields and armor.
At 139% strength, Polarize will fully replenishes Mag's shields.
Due to the high base shield replenishment, using Catalyzing Shields will drop down your shields to 111 on max rank, making negative strength still fully replenish at percentages as low as 30% strength.
Notes[]
The term "Shield Drain Damage" is in reference to the internal damage type name DT_SHIELD_DRAIN.
Grineer Health
Shield Drain Modifier
Corpus Health
Infested Health
The Murmur Health
150
Strength:10% / 15% / 20% / 25% (shield/armor drain per enemy)
Duration:2 s (expansion duration)
Range:5 m / 6 m / 7 m / 8 m (pulse initial radius)
75
True damage and shield restoration)
Magnetic damage)
Puncture and 
Slash damage)
