Obtain a new Black Mask by slaying Cave Horrors in Mos Le'Harmless Island Cave or buy from other players.
Uses
Wear it in the helmet spot during melee slayer tasks (but never in the Smoke Dungeon please!). It adds +15% attack and +15% strength during slayer assignments. Initially has 10 spells which fire randomly and have no visible animation. This mask has no spells left. There is no way to recharge the mask at the moment.
Notes
Requires 10 defence, 20 strength, and 40 combat to wear. Slayer level 58 required to fight cave horrors. You need a light source and a Witchwood Icon to enter their cave safely. Complete the Cabin Fever Quest and talk to Bill Teach on board his boat at the dock east of Port Phasmatys to arrive at the Mos Le'Harmless Island. An Ectophial would help to get to Port Phasmatys (Ghost Ahoy Quest). Can be combined with spiny helmet, earmuffs, face mask, and nosepeg to make slayer helmet after Smoking Kills quest and purchasing the ability from a Slayer Master. You can also add a focus sight and hexcrest to make a full slayer helmet.