[andrewas]

OK, post what you do have and well see what happens.

IN general - take out the demons first. A few decent fighters should normally be sufficient. Greater Whirlwind makes it real easy should you happen to have Throne of Bhaal installed.

Irenicus *can* be killed without ruby ray of reversal, but it takes significant time for his defences to wear off. Advice - stay out of his way till that happens. I think its possible to get far enough away to save the game.