Sapphiron's Demise (10 player) is a dungeon & raids achievement earned for defeating Sapphiron in Naxxramas on 10-player mode.
See also[]
Patch changes[]
Patch 3.2.0 (2009-08-04): Renamed from Sapphiron's Demise to Sapphiron's Demise (10 player).
Patch 3.0.2 (2008-10-14): Added.