Overview
Soahc ("Chaos" spelled backwards) is the final boss of Act 2, encountered in The Rift. With 400 HP, Soahc is a ceiling-mounted eyeball monster that teleports around the room and mimics the attacks of previously defeated bosses. The fight begins as a two-part encounter: you first face Organ Grinder and Steven, and after defeating both, Soahc emerges as the second phase.
Key Mechanics
Boss Mimicry
At the start of each turn, Soahc performs an attack (unless in his default form), then teleports to a new position and changes color. Each color corresponds to a different boss whose attacks he mimics. In total, he has 13 different forms including the default, cycling through attack patterns from bosses encountered throughout Act 1 and Act 2.
Notable Attacks
Some of Soahc's most dangerous mimicked attacks include Hsulf (Flushmaster form), which summons a giant wave pushing all units 10 tiles away from him; Tsalb Dnim Agem (Johnny form), which deals damage and knocks units toward the center; and Tuo Daerps (Throbbing King form), which creates attack zones that force the party to spread out.
Immunities and Resistances
Soahc is knockback immune and clears all debuffs when he transforms. This means status effects and debuffs only last until his next transformation, making sustained debuff strategies less effective than usual. He takes 2 turns per round, so crowd control abilities like stuns and freezes are valuable for denying those extra actions.
Strategy
Since Soahc clears debuffs on transformation, focus on raw damage output rather than DoT stacking. Front-load your burst damage each time he appears in a new position.
Learn the color-to-boss associations. If you recognise which boss he is mimicking, you can predict the incoming attack and position accordingly. Players who defeated Flushmaster know to stay off the push path. Players who fought Radical Rat know to watch for bombs.
Stuns and freezes are your best crowd control options since they work before he can transform and clear them. Timing a stun for the start of his turn can waste both of his actions for that round.
A balanced party composition is essential. Since Soahc uses many different boss attack patterns, a team that can handle multiple threat types will fare much better than a specialized build.