Stonebreaker

Stonebreaker is a level 46 Unique Dagger, available from Llevigar's Weapon Merchant. While slow to hit, it also deals heavy Neutral and Earth damage; however, it also works against any Water-based bonuses you may have.

Identifications
Stonebreaker can be bought from the Llevigar Weapon Merchant for 5 Emerald Blocks and 16 Emeralds, and is pre-identified.