Statius's warhammer is a crush weapon requiring level 78 Attack to wield. It can only be obtained during a game of Last Man Standing, either from opening a chest using a bloodier key or from magical loot crates that spawn in various areas of the island. Upon leaving the island, it is removed from the player and thus cannot be taken out of the minigame.
In Deadman seasonals, it is part of Statius's equipment, a set of Ancient Warriors' equipment, and is dropped by any monster found in the Wilderness as part of a global loot table, the chance being relative to the combat level of the monster.
A player performing Statius's warhammer's special attack.
Statius's warhammer has a special attack, Smash, that consumes 35% of the player's special attack energy and deals between 25% and 125% of the user's max hit, while lowering the target's current Defence level by 30% on a hit other than zero (the hit has to deal damage - even if it is a successful hit but rolls a zero, it does not work).
Defence level reductions do stack over multiple successful hits; each reduction is calculated from the current temporary level (so follow-up drains reduce fewer levels). Two successful special attacks thus reduce an opponent's Defence by a total of 51%.