Ancient Guardian

Ancient Guardian, Horadric Mage Construct, is a Super Unique Sand Dweller found in Forgotten Ruins in of Diablo III.

He guards the head of Zoltun Kulle, spawning after it is taken. Killing him is optional, for nothing prevents the player from leaving once they have the head. Unlike other monsters, Ancient Guardian will not stop pursuing a fleeing player until they leave the dungeon.

In combat, it has Extra Health and Knockback affixes. He also moves a bit faster than normal Sand Dwellers.