[quote=@Shade]
Hehe, indeed, don't worry, this is for character development.
[/quote]

I just have to ask the obvious if he's even capable of being defeated; I have a few ways to get all of us out, barring him - or maybe him too - but I am unsure what your intent is. Mine, currently, if you're curious, is using one of the warden's Banishment effects to kick us back to our home plane and leave him stuck planeshifted there.