Ossified Blade

The Ossified Blade is a sword weapon that can be obtained as a possible reward from the chest on floor 90 of the Mines when remixed mine rewards are enabled in the Advanced Options menu at the start of a new game. It can also appear when opening a Mystery Box or Golden Mystery Box at the Blacksmith.

As a mine reward weapon, it is tied to world generation choices rather than a fixed progression reward, so players who want it must either start with remixed mine rewards enabled or rely on the Blacksmith box sources later in the game. Since it is a sword, it uses the standard melee weapon behavior for that category.