Just wanted to post a little note for melee teams on Echo of Sylvanas. While DPSing her, try to spread as much as possible to avoide AOE damage, of course.

But when it comes to the ghouls, avoid using IWT. Line everyone up with follow and back step on your tank and step forward on your slaves so you break follow and are all stacked up facing the ghoul, then just use DPS abilities while slowly moving everyone backwards a step or two at a time. Using IWT more often than not turns the slaves in, so they end up backstepping into the purple crap instead of going in a straight line back towards Sylvanas.