He reappeared on April 9, 2012, announcing a future press conference in a reunion where Ayala, now known as "Sebastían Guerra" was presented as the new member of The Academy. However, a month later the faction splintered with Ayala returning to the IWA and the original members joining WWC. Angel's first non-wrestling appearance took place on June 2, 2012, as part of a WWC card held in Ponce, where they issued an open challenge to anyone in the roster. He made his in-ring debut on the first day of the Summer Madness tour, winning a contest over a midcarder. The following night, Angel defeated the incumbent WWC Universal Heavyweight Champion, Gilbert Cruz, by disqualification in a non-title bout that headlined Summer Madness' main show. In the opening night of the Aniversario 2012 series, he defeated José "Black Pain" Torres by pinfall. The following night Angel earned a victory over Ring of Honor's employee and former heavyweight champion, Davey Richards. After performing on the winning side of two tag team matches, he defeated Germán Figueroa, who had since won the Universal Heavyweight Championship. Angel was also victorious in a rematch, this time by countout. He suffered his first WWC defeat by being pinned by Figueroa in a three-way match. In his following appearance Angel lost his first singles match to Gilbert, continuing a feud by defeating him in a rematch. Former Universal and Undisputed Champion, Alex "Lightning" Cruz was responsible for his second loss. Afterwards he issued an open challenge, that resulted in three squash victories over jobbers and midcard talents. Angel went on to form an alliance with José "Chicky Starr" Laureano, who served as his manager and advisor. In his next appearance, he failed to win a match against reigning Universal Heavyweight Champion, Andy Levine. At Halloween Wrestling Xtravaganza, Angel defeated Samson Walker in the beginning of a feud. However, Walker won the following two rematches including one at Lockout 2012, only to lose their next showdown at Euphoria 2013. Afterwards, Angel performed some time performing in the tag team division, joining Filipo and Ayala with mixed results against the team of Thunder and Lightning. After defeating several jobbers and Walker, he was involved in a brief feud with "El Super Fénix", which was actually a masked Gilbert. At La Hora de la Verdad 2013, Angel lost to El Super Fénix in a hair vs. mask contest. The following month, he defeated Cotto. During this time frame, a second masked Super Fénix began aiding Gilbert during his presentations. In May, El Super Fénix #2 attacked González after a successful defense of the Universal Heavyweight Championship over Gilbert, after which he willingly unmasked himself revealing that Angel's in the stipulation match had been staged to ward off suspicion. This placed him in a feud for the title, in which he quickly became the first contender by winning a non-title bout. On May 11, 2013, Angel defeated González with the help of his new manager Julio "Barrabás" López to win the Universal Heavyweight Championship. During the following weeks he successfully defended the title in rematches, leading to a "last chance" match for González that finished with a disqualification. Angel lost the title to TNT at Crossfire on November 16, 2013.
