The green mighty slayer helmet (ef) is a level 70 slayer helmet with bonuses equivalent to a hybrid barrows helmet. It is made by upgrading a strong slayer helmet for 600 slayer reward points at any slayer master, although subsequent upgrades will only cost 60 points. It has the following effects from its components: The slayer helmet is an All-class item, which means its armour stat is used in full when defending against any style. It can also be used as an enchanted gem.