Maxwell’s Silver Hammer, a chaotic artifact silver war hammer which references the Beatles song. Its powers and details have not been specified.

You can apply a wielded war hammer to smash a door down. If the hammer is an artifact, it gets a bonus to the speed or success rate.

You can smash apart iron bars by fighting them with a war hammer.

War hammers are a two-handed weapon, with much higher damage than they currently have. Slashing and (maybe) piercing weapons no longer get a Str bonus to damage, only bludgeoning ones do. Probably need to rebalance weapon damage types and attribute bonuses completely.