Dulkath

An ancient and empty plane, arguably the oldest known plane, it’s resources are depleated and its seas are brakkish and oily. The beaches are barren and the plane is coated in dust, bones, and rubble. Nothing lives on that world any longer. Instead it is home to an ancient evil, a hungry entity that thirsts for the breath of new life. It is unable to leave, but if an unsuspecting planeswalker were to find himself lodged in its trap, conceivably it could absorb his spark and use it to escape to a new plane to devour.

Dulkath the Devourer
an ancient creature of unknown origin, possibly the original vampire

Dulkath

Infinite Worlds Gnomemaster