Graft-Harrow is the first boss of the dungeon The Dread Vault. Graft-Harrow has 1 phase throughout the encounter Vortex: Graft-Harrow becomes a vortex, pulling all players towards him, and then slams the ground, dealing moderate-high damage. Slam: Performs a 2 sec cast swing which deals low-moderate damage. Summon minions: Summons Mind flayer Scourge, Infiltrators and Ustilagors. Will begin using slam as his main ability, every 2-5 seconds. Will use Vortex every 15-20 seconds. Will summon minions and hounds every 60-90 seconds.