I have done it, I have carefully made who fights who and if you don't know who's icon I'll explain:

Right side: Eco Kids Vs Cutie Mark Crusaders 

Heavenly Sound (Lyra and Bon Bon) Vs Diamond Dogs

Dreamers of Royalty (Diamond Tiara and Silver Spoon) vs Metal Muffins (Robert and Derpy)

Dub(step) and Orca(stra) Vs Picture Perfect (Photofinish and her two friends)

Left side: Flashing Lights and Armor (Flashes Band) Vs The Winged Violin (Bulk Biceps)

Drama Club vs New and in Groove (the Dazzlings new team name)

Techies Vs The Rainbooms

Snips and Snails Vs The Shooting Stars (Trixie and her two friends)

Ps I am gonna make all of there battle scenes and defeat scene as well, it'll take some time to make but I'll make waves of releases, hope you like it!