Step 1...remove deamons. Igonre the slayer untill all the deamons are taken out. Hopefully your strong enough to do this quickly cuase the slayer will attack whoever is close.
Step 2...You gata dump his magic protections. Nail him with a copple Ruby rays, then breech and the 5th level defence spell killer (can't remember the name right now.) Keep him engaged with someone, maybe your priest and Minsc. don't let them get too banged up. Slayer is slow so if your a good party and are hasted or have boots of speed you can run around in circles wile he chases you.
Step 3...Once the defence is down, have your mages unload spell sequencers, and put Minsc and your cleric on him up close. Get Valie usen a bow with as powerfull of arrows you can find.
step 4....Unload ever damageing spell you got on him. Start a warrior rotation on the slayer. What I mean is...Once one character has taken alot of damage and is about to die, get him out of their! Slayer will blindly keep attacking whoever is beating on him at the time. Rotate the injured character out, have Jahera or yourself cast heal..Send em back in! Might even want to send Valigar that way too, unless he is doing good with the bow. Eventually Jon (the slayer) will run out of health.
It does take a wile and your millage may vary. I also don't know if Jon can be hurt by spells, but it made me feel really good blasting away with Aeria and Imoen. The key is to just keep the pressure on him, like killing trolls. Eventually they will go down. Just roll with his other attacks. When I fought him he mazed Minsc (which takes along time for boo to get out of), and my palidan Keldorn panicked. It got really uguly for a wile, but I held him off with Jahera and my fighter/mage, untill the cavilary arrived, and once those two warriors joined in the fight the slayer was.....Well Slane.
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--Kellin da Mage--
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