Rift Quest:Hazeed's Demise  

This is a rift-styled ring event. First you use the dagger to pull him out of the Plane of Earth, then you face 3 waves: Spiders & Scorpions, an iron golem, and then a ring of stone golems, then finally Hazeed. He is apparently a Riftwalker and will slip through the planes to jump around behind you and such. It is a long fight but not that bad if you are on-level.