Do yourself a favor,cast this twards the end of a fight.Tanks at this level cant hold aggro.I know someone will post now and say that they never had a problem holding aggro but its all bull.You will notice the melee stealing aggro from each other all the time.A big nuk to early will get you more aggro than the group can handle.I post this because i was excited to show this spell off when i first got it and had more than a few deaths because of it,not to mention a few angry groups.healers dont want to be healing casters and dont alot of times if you are just over nuking.
So there ya are.your fair warning.