Gratz

A small tip: For a lot of fights, it helps a lot if you just set your slaves spread out. Don't follow the leader. So when your leader get's feared or a slave get's charged it doesn't stop your other chars casting because of the knockback.

I normally set them up like:

-------------main-------------

Slave------ Slave--------Slave

But if there's enough space, like boss 2 in ramps for example just set them in a row and nuke away Most bosses will require healing though, so setting them not to far from eachother helps with Chainheal.