Rockslug

Rockslugs are relatively weak creatures with lots of hitpoints for their low level. They are often killed for Slayer tasks since their drops are fairly worthless. Since rockslugs rarely (if at all) hit anything, one can bring minimal armor and weapon if they don't have any high level gear. Every attack style is effective against rockslugs.

Location
Rockslugs are located in the mid level slayer dungeon. One can get there by choosing dungeon teleport spell in their spellbooks, then clicking (more...) and choosing slayer dungeon. After that, select the mid level option and run all the way to the back.