Kasadya

Kasadya, Conjurer of Death, is a Super Unique Death Maiden found in the Zakarum Cathedral in Diablo III. She only appears during the Fall of Westmarch quest: the location is not even accessible afterwards.

Kasadya is found operating a minor Soul Crucible in the Cathedral. Killing her will destroy the device.

In combat, she has Desecrator and Teleporter affixes, and attacks with multiple Reapers, which are summoned both by herself and by the crucible.