The sigil of slaying is a reward from Shattered Worlds. Upon activation, it increases earned Slayer experience by 10% for 30 seconds and the sigil slot itself incurs a cooldown of 60 seconds (thus players can keep sigil of slaying up for 30 seconds of every minute if they activate it every single minute). When purchased, the sigil begins with a maximum of 1,000 charges. To recharge the sigil, players may speak with the Abyssal Knight Quartermaster costing the player 22,500 shattered anima per charge.