Grolla Skullwielder

Strategy
This is the boss of the Instance. Regulary, some disruptive hammer will be cast on one person of the group. The tank should make the turn to move the group. During the fight, 3 boars will come to help the boss. Kill the boars. When killed, the boar let a dark thing on the floor to avoid from passing. At 30%, the boss will come back on her piedestal. No damage must be done to her, only root/snare. Then she will come toward the group and you mustn't be touch or dead.