Dreamslayer

Dreamslayer is a fictional character, a powerful DC Comics supervillain and part of the evil gang called Extremists. Like the other Extremists, he is an homage to a Marvel Comics character, in this case Dormammu. He first appeared in Justice League Europe #15 (June 1990), and was created by Keith Giffen, Gerard Jones and Bart Sears.

Fictional character biography
Originally, it had been thought Dreamslayer was simply a robotic version of a previous living entity, like his comrades, but it turned out he was real, or at least his mind was. As part of the group, Dreamslayer killed most of the people on Angor, his alternate Earth. He follows along to Earth with the four surviving humans of his world, Mitch Wacky, Wandjina, Silver Sorceress and Blue Jay. He possesses Maxwell Lord. He kidnaps Wacky and forces him to repair Lord Havok before killing him.

The Silver Sorceress attacks the island, along with her Justice League comrades. The natives of the island, mentally controlled by Dreamslayer, attack. The League's desire to not hurt the innocent natives costs the Sorceress her life, as she is hit with an arrow in the stomach. Before dying, she neutralizes Dreamslayer in a mystical battle. He has returned more than once, to plague Supergirl and the Justice League. He was used and tricked by the villain Overmaster.

Other versions

 * Dreamslayer appears in JLA/Avengers #4.
 * An alternate universe incarnation of Dreamslayer appears in Countdown Presents: Lord Havok and the Extremists. This version is a demon and leader of the Dreamology religion.

Powers and abilities
Dreamslayer is a supernatural being or powerful sorcerer whose magic is drawn from the dimension of terrors which he rules over. He has superhuman strength and endurance, immunity to physical and energy attacks, can fly, project flame, teleport, read minds, communicate with telepathy, and manipulate matter. He is a wraith-like being that is unlikely to be killed by conventional means, even surviving the nuclear event on Angor. When taking over a person's body, he can supercharge any metahuman abilities they have.

The Earth-8 version of Dreamslayer has the same magical abilities, including the power to freeze a whole city in time.

In other media

 * Dreamslayer appears in the Justice League Unlimited episode "Shadow of the Hawk", voiced by John DiMaggio.
 * Dreamslayer appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.