No my mistake. I do/did have the patched demogorgon but I forgot I was using the bow of gesen, fire tooth and the sling of everard on him. They were hurting him for some reason with their energy ammo. I think +4 weapons should work. I was using the wave halberd against him and that was hurting him. He does have a huge magic resistance and and resistances to all the elements of around 80 to 90 per cent. Needless to say his saving throws are very low too. Use all of you fighter special abilities if you have them. Because he regenerates you need to deal out lots of damage quickly and be ready to drop his defences straight away. I only used breach, pierce magic, remove magic and warding whip against his defences.
------------------
visit
www.zipworld.com.au/~wsgs