Chaos dwarfs

Chaos dwarves are a type of corrupted and dangerous dwarves following Zamorak found in various locations, most notably the Wilderness, and in the Taverly dungeon. They attack with a steel warhammer and have a maximum hit of 170 Life Points, which they hit fairly often, even through tough armour such as Torag's. They give Slayer experience if your task is dwarves.