- Main article: Madness of Deathwing
|Location||Maelstrom, Dragon Soul|
During the second phase of the Deathwing encounter, Deathwing begins to Hemorrhage, creating several Corrupting Parasites at a nearby location. The parasites then move towards Deathwing. They only appears during Heroic difficulty.
- Unstable Corruption — The Corrupting Parasite casts Unstable Corruption, inflicting 10% of the Corrupted Parasite's health as Fire damage to all enemies.
- Patch 4.3.0 (2011-11-29): Added.