Regulary, some disruptive hammer will be cast on one person of the group. Text will emote in red saying who the detrimental is cast on. Disruptive Hammer does a constant minor knock-back making spells being interrupted. The AoE effect extends around the person with the detriment on them and so they should move away from the group until it wears off.
During the fight, 3 boars will come to help the boss. Kill the boars. When killed, the boars leave a dark puddle on the floor. Stepping in this puddle reduces your movement speed to 30%.
At 30%, the boss will come back on her pedestal and becomes enraged. The tank must grab hate and be prepared for receiving much higher damage than at any other point in the fight. During this final portion Grolla's DPS is raised significantly and she begins using a power drain.