Eldritch Domain: A Cleric of The Great Old Ones
The eldritch domain is granted to the clerics of forgotten or banished deities such as Cthulhu¸ Dendar the Night Serpent¸ imprisoned titans¸ and Elder Gods from beyond the stars. Such deities were old when the multiverse was young¸ and possess the keys to its inner workings.
Eldritch deities send forth clerics to grow their secret cults and open the forbidden seals that will permit their return.
They grant their clerics the power to mutate their flesh¸ shred the minds of their foes¸ and warp the fabric of reality.