Final Battle Question (slight spoiler)

[Borg]

Thanks all for the help. I was able to get through the battle by throwing cannon fodder (summons) at the Fallen Solars and Stonskined Aerie being chased by Imoen while everyone else focused on Irenicus and his simulcrum. I found Dragon's breath to work very well, even on the invisible Irenicus (even though I cannot instacast it because I don't have the Robe of Vecna -- didn't quite seem right with my goodie-to-shoes party). After Irenicus went, I took down the Solars pretty quickly. By the way, casting timestop with Balthazar ignoring it is soooo powerful. The trick is to get the timestop spell off without the Solars interupting you.

Now, like Raistlin alludes to: I'm off to the even tougher battles. But, I've learned some things...