Spirit Bone

The Spirit Bone is an item from The Catacombs - Floor IV. It is used to craft the Bonemerang.

Obtaining
The Spirit Bone is a rare drop from Dungeon Reward Chests in The Catacombs - Floor IV.

It costs to open from an Obsidian Chest and  from an Emerald Chest. The drop chance is estimated to be about 1% in both the Obsidian Chest and the Emerald Chest, the chance being 2% overall.