Dreamslayer

Dreamslayer is a supervillain appearing in comic books published by DC Comics. He is part of the Extremists, a villainous group whose members are all based on an existing Marvel Comics villain. In Dreamslayer's case, he is based on the villain Dormammu. Dreamslayer first appeared in Justice League Europe #15 (June 1990), and was created by Keith Giffen, Gerard Jones and Bart Sears.