Complex sentence: Aggron has appeared in the Pokémon intro before the Movie 6 and 7 in a 2v2 battle against a Solrock and a Manectric with a Shiftry helping him.
Split into simpler sentences: Aggron has appeared in the Pokémon intro that takes place before the feature presentations of Movies numbers 6 and 7. In it, Aggron is seen in a 2v2 battle against a Solrock and a Manectric with a Shiftry helping him.