Bad Ideas Department

Steven Universe/MLP:FiM crossover.

The Diamonds (probably Yellow) are about to conquer Equestria. For continuity’s sake, this happens sometime before Steven actually changes things up.

The Mane Six (and friends) provide some resistance thanks to the Power of Friendship™…and the fact that Dragons think Gems are tasty. So the Diamonds actually go looking for Spinel as the ultimate weapon.

Cue Discord/Spinel/Pinkie shenanigans

Honestly I have no idea where this would go or even who would win, but dang, the fireworks would be impressive.