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Strain Eruption is a set mod equipable on Helminth Chargers that causes spawned maggots to explode on death, dealing a percentage of an enemy’s current health as DmgCorrosiveSmall64.png Corrosive damage to any enemy within a given radius.


Rank Damage Range Cost
0 1% 2m 2
1 2% 4m 3
2 3% 6m 4
3 4% 8m 5

Set Bonus[]

This mod is part of a set, whose set bonus increases with each additional mod equipped from that set.

Strain Set: The Helminth Charger grows cysts every X seconds that erupt every 25 seconds to spawn a maggot that seeks out and attacks enemies.

Mods Equipped Cysts Duration
1 2 6s
2 4 12s
3 6 18s
4 8 24s


  • As Strain Eruption does a fixed percentage of damage, it can scale almost indefinitely. Being more effective on high level enemies.
    • However, as an enemies health gets lower, Strain Eruption will not be as effective.

Patch History[]

Hotfix 29.5.4 (2020-11-25)

  • Fixed Nidus’ Virulence not benefiting from Volatile Maggot / Strain Maggots.

Update 27.4 (2020-05-01)

  • Fixed script error related to Helminth Chargers Strain Eruption Maggots exploding.

Update 25.1 (2019-06-05)

  • Fixed Strain Mod Maggots Energy color persisting as default.

Hotfix 25.0.8 (2019-05-31)

  • Fixed Maggots from Strain Mods not using the proper emissive colors.

Update 24.2 (2018-12-18)

  • Introduced.

Last updated: Hotfix 24.2.2 (2018-12-18)