Subterranean Smasher achievement icon

Subterranean Smasher

Defeat all encounters in addition to Oxblood the Depraved, Taskmaster Viccia, the Molten Guardian; free Lyranth; and defeat Baron Zaudrus after raising the challenge banner in Veteran Cauldron within 35 minutes without suffering a group member death. Your timer starts upon engaging the first group of enemies.