The Black mask is a helmet worn in the head slot. The mask has the same stats as a black med helm. It gives a player 16.6% Attack and Strength boosts against all monsters on the player's current Slayer task. This item is required in crafting the Slayer helmet. You will need 5 slayer points to purchase this item from the rewards shop at the Slayer Master

Black mask Black mask (10)
Attack Bonus
Stab Slash Crush Magic Range
+0 +0 +0 -3 -1
Defence Bonus
Stab Slash Crush Magic Range
+9 +10 +8 -1 +9
Other Bonus
Strength Ranged Strength Prayer Magic Damage
+0 +0 +0 +0