The Nechryarch is a superior variant of nechryael and greater nechryael. It has a chance of spawning after purchasing the unlock Bigger and Badder for 150 Slayer reward points from any Slayer master. Like nechryaels, Nechryarchs can summon minions to assist it in battle. It will summon 3 chaotic death spawns, with each one attacking with magic, ranged and melee. Given the fact that the chaotic spawns are more damaging, a common method is to run away when the chaotic spawns appear, and return to attack the Nechryarch when they lose interest. The player can also kill them, though this is only useful when bursting or barraging greater nechryaels.