|Affiliations:||Royal Flush Gang (formerly)|
|Rogue of:||Justice League|
|Weaponry:||Twin katanas, shuriken|
Jack was granted powers by Ace, who had hoped she could form a new family. However, they abandoned her in favor of a life of crime. During a final showdown with the Justice League, Jack took on Hawkgirl in aerial combat, but found his mastery of combat insufficient to beat the Thanagarian warrior.
After Ace died, Jack lost all his powers.