Campos' relationship with wrestler Crazy Boy landed him a change to work for Lucha Libre AAA Worldwide (AAA), one of Mexico's largest wrestling promotions, when Crazy Boy hurt his back and needed someone to replace him in tag team matches. Último Gladiador joined the Mexican Powers and teamed with Juventud Guerrera and Joe Líder to make his AAA debut on February 10, 2008 in a match against La Familia de Tijuana (Halloween, Extreme Tiger and T.J. Xtreme). Gladiador was only meant to be a temporary replacement for Crazy Boy, but when Juventud Guerrera left the promotion he was made a permanent member of the Mexican Powers. Gladiador took Guerrera's place in the scheduled Triplemania XVI match where he teamed with Crazy Boy and Ricky Marvin to defeat the teams of La Legión Extranjera (Bryan Danielson, Jack Evans and Teddy Hart) and La Familia de Tijuana. Último Gladiador participated in the 2008 Alas de Oro tournament, but was eliminated as the fourth man by Extreme Tiger. Gladiador and Crazy Boy also received a shot at the AAA World Tag Team Championship in a four-way tag team match at Verano de Escandalo but were defeated by La Hermandad Extrema (Nicho el Millonario and Joe Lider, who had left the Mexican Powers), in the match that also featured The Hart Foundation 2.0 (Jack Evans and Teddy Hart) and defending champions La Familia de Tijuana (Extreme Tiger and Halloween). In the following months the Mexican Powers disintegrated, leaving Último Gladiador working random matches.
