Acid Shells is a GrnDBSG Sobek-exclusive mod that causes enemies killed by the Sobek to explode, dealing a flat amount of Corrosive b Corrosive damage plus a percentage of the enemy's maximum health as Blast b Blast damage in an area of effect.

Stats Edit

Rank Flat Damage Percentage of Max Health Radius Cost
0 75 7.5% 2.5m 4
1 150 15% 5m 5
2 225 22.5% 7.5m 6
3 300 30% 10m 7
4 375 37.5% 12.5m 8
5 450 45% 15m 9


  • The explosion itself cannot apply Corrosive b Corrosive procs.
  • The explosion caused by Acid Shells can proc into itself and create another explosion on kill, creating a chain reaction that lead to very large areas being cleared in lower level missions.
  • Enemies killed by Acid Shells will have their corpses disintegrate, good for Stealth gameplay if silenced due to no bodies being left behind.


  • Due to the nature of this mod, prioritizing heavy units will result in other enemies taking high damage or dying due to the resulting explosion, reducing the time to kill entire crowds significantly.
  • Modding the GrnDBSG Sobek for Corrosive b Corrosive or Viral b Viral damage and punch through can be effective to soften up enemies at higher levels with procs before the explosion occurs, thus amplifying the damage inflicted by Acid Shells' burst.
  • Against the Infested, this mod scales tremendously well since most of them have no armor.
  • Faction damage mods and RhinoIcon272 Rhino's Roar130xDark Roar directly affect the mod's explosion damage.
    • In addition, abilities that increase damage on enemies or debuff them such as BansheeIcon272 Banshee's Sonar130xDark Sonar, NovaIcon272 Nova's MolecularPrime130xDark Molecular Prime, or SarynIcon272 Saryn's Spores130xDark Spores can indirectly enhance it.
    • GarudaIcon272 Garuda's SeekingTalons130xDark Seeking Talons works extremely well with this mod, as any Slash b Slash effects caused by Acid Shells belong to the Sobek and thus can trigger Acid Shells themselves. Because this combo scales with enemy health and ignores armor, it remains effective at any level as long as the Sobek can still kill an enemy to start the reaction.
  • The aoe affects breakable containers as well, giving an effect similar to Looter as long as there are enemies around to proc the explosion.


  • Prior to Hotfix 18.10.6, this mod's polarity was Zenurik.
  • This mod, along with the other Executioner mods, are the second set mods to feature non-generic enemies on the mod card, the first being Mod TT 20pxVengeful Revenant.
  • At the time of Operation: Rathuum's announcement, this mod was referred to as Execution Shells, likely an earlier name for the mod. This initially caused confusion with players trying to look for the nonexistent mod.
  • The mod is used by Executioner Nok, although his version can remove armor.


  • The blast seems not to be radial as advertised, but instead damages targets on either side and in front of the target killed.


Patch HistoryEdit

Update 22.20
  • Fixed Acid Shells Mod causing Grineer Dropships to disappear.

Hotfix 20.2.3

  • Fixed Infested Runners/Crawlers missing the Acid Shells FX when killed

Hotfix 19.9.2

  • Fixed missing enemy death FX when using Sobek with Acid Shells as per: this thread

Hotfix 19.3.2

  • Explosions on enemy death caused by Vulcan Blitz and Acid Shells mods will now properly alert enemies.

Hotfix 18.10.6

  • Changed the Acid Shells to a Madurai polarity.

Update 18.10

  • Introduced.
Community content is available under CC-BY-SA unless otherwise noted.