The Infestation dwelling within Nidus mutates rapidly when used against his foes, fueling his abilities and yielding various symbiotic benefits. Nidus possesses various passive mechanics highlighted in the tabs below:

Mutation Stacks are a resource unique to Nidus, indicated by the Mutation counter and gauge displayed in the lower-right on the HUD, above the ability icons.

  • Every enemy hit by Virulence130xDark Virulence will grant Nidus 1 Mutation Stack.
    • Abilities are not required to deal damage to enemies, only ability contact is needed to increase Mutation stacks.
    • Mutation stacks are stored until used by the player. Stacks will not disappear in the event of a host migration.
    • Up to a maximum of 3 stacks can be stored. Each stack causes the gauge to gradually appear more infested. Upon reaching 3 stacks, the counter is hidden and the gauge is overlapped by Virulence's ability icon colored in red and black.
    • ParasiticLink130xDark Parasitic Link and Ravenous130xDark Ravenous each cost 1 stack to activate instead of using energy.
  • Nidus' appearance changes as more stacks are collected:
    • With the base skin:
      • At 1 stack, tendrils will protrude from his neck and upper spine, while the carapace around his ribs will open.
      • At 2 stacks, the carapace around his thighs and arms will open to reveal more infested flesh and tendrils beneath.
      • At 3 stacks, certain sections of his currently-equipped helmet will open up, and many more tendrils will be exposed.
    • With the Nidus Phryke Skin:
      • At 1 stack, he gains protective armor on his thighs, and his shoulder pads are covered in a cage-like armor with a protruding spike on the top.
      • At 2 stacks, a large curved blade appears on each of the shoulder pad spikes and his forearms are lined with a curved blade that extends two large spikes.
      • At 3 stacks, his face becomes covered with a crown-like visor.
    • When stacks fall below the required triggers, Nidus' appearance will revert to the appropriate stage.

If Nidus suffers fatal damage with at least 1 Mutation stack, it will be consumed, restoring 50% of Nidus' health.

  • A UI banner displaying "Undying" will appear at the top-center of the screen while this passive is activated. The required amount of Mutation stacks will be visibly subtracted from the counter and gauge.

Nidus' health regenerates at a rate of 5 health per second.

Abilities Edit

Virulence VirulenceIcon
Rupture the ground with a damaging fungal growth that steals energy from each enemy it strikes. For every five enemies hit, the Infestation mutates, multiplying its destructive force.
Strength:40 (damage)
Range:14 m
Misc:4 m (fungal growth width)
25 (energy refund per hit)

Larva LarvaIcon
Spawn an Infested pod that erupts with tendrils, latches onto nearby enemies and pulls them in.
Duration:4 s
Range:8 m

ParasiticLink ParasiticLinkIcon
Parasitic Link
Bind to a target with a parasitic link. For allies, both the host and Nidus deal increased damage. Linked enemies take the damage inflicted on Nidus.

Mutation Stacks Cost: 1

Strength:20% (damage bonus)
50% (damage redirection)
Duration:20 s
Range:20 m

Ravenous RavenousIcon
Gluttonous maggots swarm nearby enemies, feasting until they are hit with Virulence burst with Infestation. The maggots benefit from Mutation and each enemy hit adds to the Mutation stack.

Mutation Stacks Cost: 1

Strength:200 (explosion damage)
10 (health regen per second)
Duration:10 s
Range:4 m (explosion radius)
Misc:8 m (ability diameter)
9 (number of maggots)
100 (maggot health)
10 (maggot toxin damage)
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