Qward

Qward is a planet in the antiverse. It is where Anti-Matter Man originated from.

History
At some point, the Weaponers of Qward create the Anti-Matter Man in order to invade the positive matter universes, but due to the dangerously of the weapon, it was sealed within a moon's core.
 * The following took place in an alternate timeline where Flashpoint never happened.

At some point, the Anti-Matter Man escaped his confinement and traveled through the multiverse in order to invade others Earths.

Residents

 * Weaponers of Qward
 * Weaponers of Qward

Behind the scenes

 * In the DC comics, Qward is a planet in the Antimatter Universe.