Héroes Inmortales, Dr. Wagner Jr. made his first successful defense of the AAA Latin American Championship by defeating El Hijo del Perro Aguayo in a Bullterrier match. After the match, two of AAA's top técnicos, and Wagner's allies, La Parka and Octagón, both turned on him and joined Aguayo's Los Perros del Mal. On December 16 at Guerra de Titanes, Wagner Jr. lost the AAA Latin American Championship to L.A. Park. In early 2012, Dr. Wagner Jr. started a rivalry with the invading El Consejo stable. On March 18 at Rey de Reyes, Wagner teamed with Electroshock and Heavy Metal losing to El Consejo members Máscara Año 2000 Jr., El Texano Jr. and Toscano, with Máscara Año 2000 Jr. pinning Wagner following outside interference. The following month, Wagner made peace with Silver King as the two came together to battle El Consejo. On August 5 in the main event of Triplemanía XX, Wagner Jr. defeated Máscara Año 2000 Jr. in a Mask vs. Mask match, forcing his rival to unmask himself. In early 2013, Wagner Jr., claiming dissatisfaction with his position in AAA, left the promotion for a several-month-long stint with El Hijo del Santo's Todo X el Todos promotion, only to return in May in time for Triplemanía XXI. At the event, Dr. Wagner Jr. teamed with Electroshock, La Parka and Octagón to defeat Canek, Máscara Año 2000, Universo 2000 and Villano IV in an eight-man tag team match. Afterwards, the relationship between Wagner and AAA once again broke down with Wagner taking public potshots at the promotion. Independent circuit (2013–present) On November 17, 2013, Wagner Jr. returned to CMLL at a small event in Naucalpan, confronting and challenging Mr. Niebla. For the past weeks, Wagner had teased "invading" CMLL and settling his score with the likes of Atlantis and Último Guerrero. In July 2014, Wagner worked a tour of Japan, during which he wrestled for Tokyo Gurentai and women's wrestling promotion World Wonder Ring Stardom. Return to CMLL (2015) In August 2015, Wagner made his return to CMLL after an almost 7-year absence. His tenure with CMLL was only brief as CMLL fired Wagner on September 11, after he reportedly told them that taking part in the 82nd Anniversary Show "didn't suit his interests". It was later reported that Wagner decided to not work the anniversary show out of loyalty to L.A. Park, who had been released by