Mulliuqs the Horrid, Timeless Overlord, is a Unique Barbed Lurker found in the Ancient Ruins of Dholmour in Act V of Diablo III.
In combat, he has Reflects Damage, Wormhole and Thunderstorm affixes. He is fought in three stages: every 25% Life, he becomes invulnerable and flees to the next platform, summoning Scouring Chargers and meteors (either molten or usual). At the final platform (near the entrance), he also summons Barbed Lurkers.