Seraziel

Seraziel, Guardian of Malthael, is a Super Unique Death Maiden found in Pandemonium Fortress Level 2 in Diablo III. She guards the Soul Prison, and killing her is required to destroy it and liberate the souls within.

Seraziel is the last Death Maiden found in game. She has Electrified, Thunderstorm, Fast and Vortex affixes. In addition, if she is not killed in 30 seconds, she will briefly shield herself and summon Winged Assassins at her side.

She is the only Guardian of Malthael who is guaranteed to appear in every game in Campaign (yet not in Adventure Mode).

Killing Seraziel allows players to break the Soul Prison seals. Upon doing so, they immediately gain the power of the dead to defeat Malthael.