I'm sure this is going to make me sound like a noob, but o well. My group has completed all of the Veteran dungeons except for crypt of hearts. We always fly through the entire dungeon and come to a screeching halt on the end boss. Between focusing on dodging all the mechanics and dealing with the wraiths we struggle to get the needed dps to burn the boss down, which results in all of us slowing dying. What's even more frustrating, is I have watched tons of videos that make it look so easy. Does anyone know of a good strategy to deal with this boss?