Rakshasa in Eberron
In the Eberron campaign setting, rakshasa were once a major world power, but were defeated and forced into withdrawal from active participation in world events by the couatls. Rakshasa rajahs are beings of near deific power, although they are not deities. Also known as Overlords, they are second only to the progenitor dragons and the release of one is a world-threatening event.
Read more about this topic: Rakshasa (Dungeons & Dragons)