Statius's warhammer is part of Statius's Equipment and is obtained as a very rare drop by killing Revenants in the Forinthry Dungeon or the Chaos Elemental. This weapon came out with the release of PvP worlds.
The normal version requires 78 Attack and lasts for 1 hour of combat. After the time is up, the warhammer will turn into dust. If a player dies without protecting this weapon and it was degraded, the weapon will instead turn into coins, which are based on the time used with the weapon before losing it, as with all PvP equipment.
Official meeting point for the product committal is:
World 1 West Varrock Bank
Additional Downloadable Content