Overfiend Kazpian
Ossein Cage
A Ruinach and the keeper of the Dolorous Cista, waiting at the end of the Ossein Cage.
Popular builds
The builds groups run most often at this boss, one per role. Ranked by how often each is run, not by damage done.
Most popular Tank build
Nightblade tank with Pearlescent Ward
seen 2×
Skills
Perfected Xoryn's Masterpiece7 
Perfected Pearlescent Ward5 
Magma Incarnate1 
Spaulder of Ruin1 Most popular Healer build
Warden healer with Jorvuld's Guidance, Roaring Opportunist and Symphony of Blades
seen 7×
Skills
Jorvuld's Guidance5 Perfected Roaring Opportunist5 
Symphony of Blades2 
Perfected Precise Regeneration2 Most popular DPS build
Arcanist DPS
seen 64×
Skills
Spattering Disjunction5 
Perfected Slivers of the Null Arca5 Perfected Crushing Wall2 
Zaan1 
Velothi Ur-Mage's Amulet1 Most popular Support build
Ranked by how often a build is run, from the top 100 boss-DPS parses per boss. U50 data, as of 4 Aug 2026.