Corrupt statius's warhammer is part of the Corrupt Statius's Equipment set which is obtained by killing revenants.

It degrades in and out of combat, and lasts 15 minutes.

This weapon came out with the release of PvP worlds. It requires 20 Attack. Since the new auto-skull update, this weapon has become popular as a substitute for players with low attack levels PK'ing using the obsidian maul, because they would only get the full benefit of the weapon while wearing a berserker necklace, which would cause them to risk a loss of around 4800000 coins.

However, a corrupt vesta's longsword might be a better alternative. It's (slightly) stronger, but a bit less accurate. The longsword also has a higher price than the warhammer. Both weapons are the same speed. An obsidian maul with the berserker necklace is also a strong weapon if you're unable to afford the huge amounts of money on the degrading weapons. Overall the hammer is probably the best weapon, as it has more accuracy, is only 4 strength bonus less than the longsword, and is a few millions cheaper.

As each 15 minutes contain 1500 ticks and the hammer hits once per 6 ticks, you are able to hit 250 hits with this hammer before it degrades. Thus, each hit costs approximately 22,800 coins when using this hammer.