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Masters of the Demons, members of this class can gain tremendous power over demonkind, either for good or for evil ends.
Their spells are contained in specific blades, shields and helms (actually shaped in the form of horns) which, when wielded, allow the Demonologist to cast spells unique to his or her class. Each piece of equipment holds 3 spells.
See the information on the Demonology school of magic for more details.
Starting stat modifiers, starting Skills, innate abilities and starting equipment: Please see the in-game help.