Warhammer Fantasy

The caster calls upon a greater daemon (DC up to 20)– Lord of Change, a Great Unclean One, a Keeper of Secrets, or a Bloodthirster. A ritual of summoning such a powerful being is arduous long, and costly. A Lord of Change will only come if a document of great importance is granted, along of a particularly interesting specimen of material or flesh (usually some artifact). A Great Unclean One demands a ritual of sacrifice of 77 healthy creatures to a death disease. A BloodThirster is easier to summon if one promises them a great slaughter, along with a sacrifice of 88 people in the most bloody manner possible. Keeper of Secrets will come only for a six day orgy and sacrifice of 66 defiled virgins, and a promise of a secret. Once summoned, the greater daemon is positive in their disposition to the summoner, and will generally follow commands, if they align with their desires. But should the summoner displease them, or somehow try to compel to do what they don't like, this can easily end.