This must be a very rare drop from him. I have been farming for Gothic Gauntlets at his pop area and have killed him 4-5 times with no drops at all. I am anxious to see what this goes for in AH and/or what this is used to create by crafters.
Cannot be sold to NPCs.
Sales are painfully slow over on Leviathan, wish I'd researched the drop before taking on the NM, wasn't worth my time!
Drop 1/1 Thf90
