This boss is completly crap. These world bosses are so nonsense. Why not making a voa so everyone gets a chance to kill it.
In my realm here is guilds doing this boss 10times in a week and why? Because they wont let others to recive any extra loots. I've been trying this Sha of anger now 13 times total and always our grp has lost it.
Worst idea ever blizz.