Complex sentence: On August 5,2015, Melina debuted as heel for Lucha Underground at Ultima Lucha and helped Johnny Mundo in his match against Alberto El Patron by hitting El Patron with his title while the referee was knocked down.
Split into simpler sentences: On August 5,2015, Melina debuted in Lucha Underground at "Ultima Lucha". As a heel, she helped Johnny Mundo in his match against Alberto El Patron by hitting El Patron with his title belt while the referee was knocked down.