Cup of Blood

The  is a item that is dropped from the Lava Leech.

Obtaining
The can be dropped from the Lava Leech, which can be fished up from Lava on the Crimson Isle.

Essence Crafting
The Cup of Blood is used to add Stars to pieces of gear:
 * Blade of the Volcano
 * Inferno Rod
 * Hellfire Rod