▁M íst ico ▁and ▁H é ctor ▁Gar za ▁won ▁the ▁C ML L ▁World ▁Tag ▁Team ▁Championship ▁by ▁defe ating ▁A ver no ▁and ▁Me ph isto . ▁In ▁April , ▁the ▁commission ▁declared ▁the ▁title ▁vac ant ▁after ▁a ▁match ▁resulted ▁in ▁a ▁double ▁dis qual ification . ▁M íst ico ▁and ▁Gar za ▁rec laimed ▁the ▁tag ▁team ▁title ▁by ▁defe ating ▁A ver no ▁and ▁Me ph isto ▁in ▁a ▁rem atch . ▁They ▁eventually ▁lost ▁the ▁title ▁to ▁A ver no ▁and ▁Me ph isto ▁in ▁December . ▁ ▁After ▁the ▁team ▁with ▁Gar za ▁broke ▁up ▁M íst ico ▁began ▁working ▁a ▁story line ▁fe ud ▁against ▁La ▁P este ▁Neg ra ▁(" the ▁Black ▁Pl ague "), ▁a ▁group ▁consisting ▁of ▁Neg ro ▁Cas as , ▁El ▁Fel ino , ▁and ▁Mr . ▁N ieb la . ▁On ▁March ▁ 2 0 , ▁ 2 0 0 9 , ▁M íst ico ▁lost ▁his ▁C ML L ▁Wel ter weight ▁Championship ▁to ▁Neg ro ▁Cas as ▁in ▁one ▁half ▁of ▁the ▁main ▁event ▁of ▁the ▁ 2 0 0 9 ▁H omen aje ▁a ▁D os ▁Ley end as ▁show . ▁Sub sequently , ▁challeng es ▁were ▁made ▁for ▁a ▁L ucha ▁de ▁A puesta ▁between ▁M íst ico ▁and ▁either ▁El ▁Fel ino ▁or ▁Mr . ▁N ieb la , ▁but ▁those ▁plans ▁were ▁soon ▁replaced ▁by ▁an ▁A puesta ▁between ▁M íst ico ▁and ▁Neg ro ▁Cas as , ▁as ▁the ▁main ▁event ▁of