“ The players encounter an organization dedicated to toppling tyrannous governments; both good and evil. Secretly, they are led by the twin daughters of Lucifer / The Lightbringer / (Generic Adversary God). These daughters have an appropriate set of divine or demonic powers, but strictly speaking, are not evil.”
“ Imagine a person wearing a cloak of invisibility flying a flying beast (e.g. winged horse, gryphon) which was also wearing a cloak of invisibility.”
“ Little halflings are told that if they don't behave, a demon called Santa Claus from a hell of ice will kidnap them and force them to toil making toys.”