Talk:Demogorgon/@comment-98.167.165.68-20180130031851

Cast Hardiness, Resist Magic and Protection From Evil on all your martials. Have them surround the area he spawns in the middle with Greater Whirlwind queued. Keep that up until he's dead

*Make sure you have the sword that lowers AC and Magic Resistence - The Answerer* This boss has -12 AC and self heals and resists almost all magic

Equip your fighters with the best THACO you can get, you'll need it. Keep your mage out to the distance and spam Spellstrike and Breach from the wands in the keep on Demogorgon, ignore every summon he does. Make sure the Player Character is not the focus of his attacks, keep him off a short distance from the circle before he summons, then rush in. You'll kill him in very short time.