Corrosive Projection

For the damage type, see Damage/Corrosive Damage.

Corrosive Projection
Tradeable
Cannot be obtained from transmutation
📝 Update Infobox Data
Max Rank Description
Enemies lose -18% Armor
General Information
Type	Aura
Polarity	Naramon
Rarity	Uncommon
Max Rank	5
Endo Required To Max	620
Credits Required To Max	29,946
Base Capacity Cost	-2
Trading Tax	4,000
Introduced	Update 8.0 (2013-05-23)
Vendor Sources
Vendors Nightwave  20 for x1
Official Drop Tables
https://www.warframe.com/droptables

Corrosive Projection is an aura mod that reduces armor for all enemies in a mission.

Stats

Rank	Effect	Cost *
0	-3%	-2
1	-6%	-3
2	-9%	-4
3	-12%	-5
4	-15%	-6
5	-18%	-7

* Aura mods increase the amount of Mod Capacity

Notes

• This mod stacks additively with itself when multiple teammates are using it, reducing enemy armor up to 72% with a 4-player squad.
• The effectiveness of this mod is reduced under the "Augmented Enemy Armor" Sortie condition.

Armor Removal Interactions

When Corrosive Projection is combined with the status effect of and , the armor reduction is multiplicative. This can be expressed as the following:

Armor after reduction = (1 - 50%) × [1 - (20% + 6% × Number of Corrosive stacks)] × (1 - 18% × Number Corrosive Projections)

For example, a full 4-player squad with max-rank Corrosive Projections, an active proc, and max stacked proc will result in an enemy's armor being reduced to:

(1 - 50%) × [1 - (20% + 6% × 10)] × (1 - 18% × 4) = 2.8%.

If only one player has a max-rank Corrosive Projection with the above statuses, an enemy's armor would instead be reduced to:

(1 - 50%) × [1 - (20% + 6% × 10)] × (1 - 18%) = 8.2%.

Currently, the only non-ability method to completely remove armor is to use  Shattering Impact or  Sharpened Claws.

Tips

• Most effective against Grineer enemies, although useful against Infested due to armor-buffing Swarm-Mutalist MOAs.

Trivia

• Corrosive Projection was originally obtainable during Artifact Defense Event from special alerts, and is now available to be bought with Creds from Nightwave Offerings.
• Prior to Damage 2.0, if all 4 players in a given cell each used a fully-ranked Corrosive Projection, this would result in negative armor values and all damage dealt by the cell would be reduced to 1. This was fixed by capping the maximum armor reduction to 100%.
• As with  Enemy Sense, the mod card still depicts a Shield Lancer armed with a  Sicarus.

Gallery

Old appearance

Patch History

Update 27.2 (2020-03-05)

Faction Aura Changes

We are rebalancing the faction Auras to not completely bypass our rebalancing effort. More importantly though, with the complete rescale these Auras (mostly Corrosive Projection) will not be as necessary as they were.

Corrosive Projection, Shield Disruption and Infested Impedance new Rank values are:

• Unranked: -3%
• Rank 1: -6%
• Rank 2: -9%
• Rank 3: -12%
• Rank 4: -15%
• Rank 5: -18%

Why: We think being consistent is key. Passively removing 100% of an enemy's defenses is not an interesting choice, and we were completely inconsistent in this regard with Auras (i.e the efficacy of 4x Corrosive Projections vs 4x Shield Disruptions).

Update 25.1 (2019-06-05)

• Fixed enemies spawning being uneffected by Corrosive Projection Aura worn by players in the Rift at the time.

Update 8.0 (2013-05-23)

• Introduced as part of the Artifact Defense Event.

See also

• Aura