Mercurystone
For a maxed weapon, you need 15 Mercurystone Shards, 6 Mercurystone Chunks, and 1 Pure Mercurystone.
- You can find Shards and Chunks on the different variants of Man Centipedes from 3-2 and 3-3.
- The Pure Mercurystone is found in the Plague Swamp in Dirty Colossus Archstonestone (5-3).
