 On January 29, 2010, Negro Casas teamed up with La Máscara to participate in CMLL's "Torneo Nacional de Pareja Increíbles" ("National Amazing Pairs tournament"), a tournament where CMLL teams up a Tecnico (La Máscara) and a Rudo (Casas) for a tournament. The two defeated El Texano Jr. and Rouge in the opening round, El Sagrado and Shocker in the second round, and Héctor Garza and Toscano in the semi-final to earn a spot in the final of the tournament. On February 5, 2010, Casas and La Máscara lost to Máscara Dorada and Atlantis in the finals. On February 14, 2010, Casas defeated El Hijo del Fantasma to win the CMLL World Middleweight Championship for the second time. During most of April and into May Negro Casas tourned with NJPW in Japan. On May 3, 2010 Casas lost the CMLL World Middleweight title to Jushin Thunder Liger during NJPW's Wrestling Dontaku 2010 show. On October 15, 2010, Charly Manson defeated Negro Casas in a Lucha de Apuesta to take his hair. On February 14, 2012, Casas defeated La Sombra to win the NWA World Historic Welterweight Championship for the first time. On March 2 at Homenaje a Dos Leyendas, Casas and Blue Panther wrestled to a draw in a Lucha de Apuesta and were, as a result, both shaved bald. On October 21, Casas returned to NJPW, when he and Bushi entered the 2012 Super Jr. Tag Tournament as "Grupo Cibernetico". The team was eliminated from the tournament in the first round by Suzuki-gun (Taichi and Taka Michinoku). On December 25, 2012, Negro Casas successfully defended the NWA Historic Welterweight Championship against Guerrero Maya Jr. on a special Christmas show in Arena Mexico after Maya Jr. had defeated Casas in a series of matches leading up to the show. In early 2013 Negro Casas and Guerrero Maya Jr. were teamed up for the 2013 CMLL Torneo Nacional de Parejas Increibles, a tournament where the concept was that rivals or at least wrestlers from opposite sides of the tecnico / rudo divide. The team lost in the first round to eventual tournament winners La Sombra and Volador Jr. On June 2, Casas lost the NWA World Historic Welterweight Championship to Máscara Dorada, ending his reign at 475 days, the longest in the title's history. On January 3, 2014, Casas defeated Titán in the finals to win the 2014 Leyenda de Plata. On February 18, Casas, El Felino and Mr. Niebla defeated La Máscara, Rush and Titán to win the Mexican National Trios Championship. On June 13, Casas and Shocker defeated La Máscara and Rush to win the CMLL World Tag Team Championship. On August 1 at El Juicio Final, Casas lost his hair to Rush in a Lucha de Apuestas. On April 26, 2015, La Peste Negra lost the Mexican National Trios Championship to Los Reyes de la Atlantida (Atlantis, Delta and Guerrero Maya Jr.). On May 22, Casas defeated Dragon Lee to win the 2015 Leyenda de Plata, his second in a row and third overall.
