Essence of Amethyst - Sold by Squirt the Peddler in Act 2.Westmarch Holy Water - Act 5 Horadric Cache.Corrupted Angel Flesh - Act 4 Horadric Cache.Arreat War Tapestry - Act 3 Horadric Cache.Caldeum Nightshade - Act 2 Horadric Cache.How do I get the materials to use the Cube?Įach recipe requires a certain amount of unique materials that can only be found from Horadric Caches or the Act 2 vendor Squirt the Peddler. Once found you can easily access the cube in any of the major Act towns at anytime. Simply talk to Zoltun Kulle in Act town and then travel to the The Ruins of Sescheron in Act 3 and find the Elder Sanctum, somewhere on that map you will find the cube. There is no long quest or list of requirements to find it. The Cube can only be found in Adventure mode.