A War Hammer +2 is an enchanted weapon. It has a +2 bonus to damage and -2 bonus to speed factor and THAC0. This weapon is in the war hammer proficiency in all games expect Baldur's Gate, where they are in blunt weapons proficiency.
|“||Mounted knights cannot effectively use pole arms while on horseback, and as a result, many weapons have been altered so they may be used one-handed. The horseman's war hammer is made entirely of steel, and has a shaft about 18 inches long. Powerful magical energy flows through this weapon, though its origins are nondescript.||”|