A rock thrownhammer is slayer equipment that is required to kill gargoyles. Unlike the rock hammer, the rock thrownhammer can be used to finish off gargoyles without having do so within melee distance. This is useful for finishing off gargoyles when ranging from a safespot, or when finishing off Dawn. Since they are consumed upon usage, players should buy enough thrownhammers for their slayer task.
While damage can be done to them with a regular weapon at 75 Slayer, the thrownhammer must be used on gargoyles to finish them off when they have 10 hitpoints or less left, unless the player has unlocked the Gargoyle smasher ability via spending 120 slayer reward points, which allows players to automatically use the thrownhammer to finish off the gargoyle.
Players can buy a rock thrownhammer from any Slayer Master for 200 coins each.
| Equipment from Slayer Masters |
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| Items from Slayer Masters |
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| Purchased with Slayer reward points |
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| Others |
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