SCS/SCS2. He becomes 12th mage/12th fighter and even though he says he's weakened, he's at full strength and spells. He put up Minor Globe/Improved Haste/Improved Invisibility against my 4th level party and it was a slaughter. I could have cheesed my way through it, but when it's something as unbalanced as this I just skip the encounter....
Oh, can anyone tell me which mods made Khaark harder? It matters only to the extent that I would like to know who made the game more enjoyable for me; perhaps I could cruise by their forums and thank them for their work making the game more enjoyable. I am not crazy enough to want to play a Tactics install, but I do enjoy the occasional harder, but still doable, fight.
My party were anywhere from 4/4/5 to 7 depending on the character. Even so I needed good spell use (Detect Invisible was absolutely key to defeating Khaark, and is only a 2nd level Mage spell), and I used up a lot of consumable resources (wand charges, potions), suffered a lot of damage, and, as I say, it took three tries, learning progressively more about his tactics with each attempt. Crazy as he was, I wouldn't have guessed he was that powerful.
Anyway, I continue to enjoy the game (it's been years since I played, and I am having a blast with the mixture of familiar and different that comes with playing with a lot of mods after years away from the game).
Dennis