In 2008 Averno formed the group "Los Hijos del Averno" ("The Sons of Hell") alongside Mephisto and Ephesto, followed by Averno and Mephisto defeating Atlantis and Último Guerrero to win the CMLL World Tag Team Championship for a second time. On September 17, 2008 Averno defeated Negro Casas to win the CMLL World Middleweight Championship, becoming a double middleweight champion as he still held the NWA World Middleweight Championship. Their reign lasted only 38 days before Místico and Héctor Garza won the championship from them. The duo became three-time tag team champions by the end of the year as Averno and Mephisto defeated Místico and Garza on December 7, 2008. The duo's third run with the CMLL World Tag Teams Championship ended on January 16, 2009 when they lost to La Sombra and Volador Jr. On July 22, Averno lost one of his middleweight championships, the CMLL World Middleweight Championship, to Hijo del Fantasma. On July 12, 2010, at the Promociones Gutiérrez 1st Anniversary Show Averno participated in a match where 10 men put their mask on the line in a match that featured five "pareja incredibles" teams, with the losing team being forced to wrestle each other with their mask on the line. His partner in the match was Último Guerrero, facing off against the teams of Atlantis and Olímpico, Místico and El Oriental, Histeria and La Sombra, Volado Jr. and El Alebrije. Averno and Último Guerrero was the third team to escape the match. In mid 2010 CMLL abandoned the NWA World Middleweight Championship after repeated complaints from the National Wrestling Alliance, instead they created the NWA World Historic Middleweight Championship and made Averno the first champion. Averno was one of 14 men putting their masks on the line in a "Lucha de Apuestas" steel cage match, the main event of the CMLL 77th Anniversary Show. Averno was the first man to leave the steel cage with all three members of "Los Hijos del Averno" quickly leaving the cage, keeping their masks safe.