Goliath Greathammer

Greathammer, Goliath: This big, heavy hammer is a favorite of goliath barbarians and warriors. The incredibly heavy head of the hammer allows it to make particularly devastating strikes against weapons and shields, granting the wielder a +2 bonus on opposed attack rolls to sunder an enemy’s weapon or shield.

Cost: 30 gp
Dmg (S) 1d10 Dmg (M) 1d12 Dmg (L) 3d6
Critical: x4
Range Increment: —
Weight: 30 lb
Damage Type: Bludgeoning

Source: Races of Stone