Conjurers can now pick and choose what type of demon they conjure.

cast 'conjure demon'

= challegha, mors-gravis, harmentia, morosa

Each demon has been updated with attitudes, skills, spells, immunities, resistances, vulnerabilities, etc. Demons are now more tactical than in the past. Pumping mana works the same way as it does for elementals, instead of what type of demon you get.