Due to this, the tank and off-tank will need to rotate in order to wipe their stacks and prevent an instant death.
Bitter Hate is a stacking debuff that will inflict lethal damage on reaching 8 stacks.This will only be used during the transition from the add phase (3) to phase 4. Mortal Chorus is an arena-wide AoE that deals moderate damage and knockback.Deafening Bellow is an arena-wide attack that deals moderate damage to the entire group.Scarlet Whisper is a magic-based tank-buster with no cast-time that will cleave the main target for high damage.
Should the battle go on for 11 minutes, Nidhogg will spend 10 seconds to cast a Deafening Bellow that will wipe the entire raid. Nidhogg will utilize many different abilities across a total of 6 phases, some of which are dealt in his standard Dragon Form, while others are exclusive to his Human Form later in the battle.