Feel free to post again and interact with your squad mates while kicking ass. There's no limit of one post until I post again, I'm just gonna try to wait for everybody to post at least once before finishing off the fight!

HeySeuss - for magic, since the power is coming out of the warrens, a simple hand wave or gesture might help a Mage open up the invisible portal to the other realm.

If you want chants or what not for your character go ahead with it though! Whatever suits him best, let's just say that mages in Mirhandia have many different techniques of channeling the warrens.