- Main article: Madness of Deathwing
A Mutated Corruption appears shortly after assaulting a platform during the Deathwing encounter.
- Crush — The crushing weight of the Mutated Corruption inflicts Physical damage to enemies in a cone in front of the Corruption.
- Impale — The Mutated Corruption impales it's target, inflicting Physical damage to the target.
- Patch 4.3.0 (2011-11-29): Added.