Doomhammer of Doomhammer.

The massive war-hammer once wielded by the fearsome Fire Dwarf Doomhammer. STR-2 vs AC (STR vs AC for dwarfs), 1d12 dmg to target; STR vs REF, 1d6 dmg and shifts one sq. outwards to all enemies within the immediate radius of the target. Upon killing an enemy, it does 2d12 dmg to target, 1d8 and shift two sq to those in radius, for remainder of the encounter.