The Bandosian warhammer is a 2-handed warhammer that is part of the Bandosian armour set, and was released along with the God Wars Dungeon expansion update. It requires 70 Strength and 65 Attack to wear. It is a possible drop from General Graardor and his bodyguards in the God Wars Dungeon. Its special attack, Bonebreaker, takes 5 seconds to perform, then hits 5x the damage of a regular attack. This uses 100% of the special attack bar.