Biography:
In the alternate universe of Dimension E-6-L (The "EVIL" Dimension), Mack Travis grew up to be the ultimate Texas outlaw. He stole the Alamo and ranged over a massive turf of blackened oil fields. He was a member of the Blackguard Club and one of the world's most prominent evil-doers. That was until he was pulled across realities to the world of Union City (Dimension UC-20-A) by Garth Gewl's Dimensional Extractor Beam. Wrangler had been interfering in Gewl Energy's illegal offshore drilling operations and Garth was determined to stop the hero. Wrangler had tore through the Giant Robot Shark and sent Steelheart packing when Garth sent them to stop the Texan hero. So, Garth reasoned that another Wrangler would be the best way to stop his Wrangler. So Garth used the Reality Scope that his father, Garren Gewl had invented in the 1960's and targeted the nastiest, strongest, cruelest Wrangler he could find, hijacking him across dimensions. Garth lied to Rustler, telling him that Wrangler was the cause of him being pulled to the world of Union City. Garth told Rustler that the only way his "Dimensional Frequency" could be reset was to kill Wrangler. This set Rustler on a collision course with his dimensional doppelgänger. The two have been arch-rivals ever since. Rustler has the same strength, invulnerability, and flight as Wrangler but as brutal and mean as Wrangler is morally upstanding.