Steven is a Magical Girl. She uses ancient bling to summon a magical weapon, has a horse of a different color and is going through her queenliness test.
The only thing he's missing is a semi-useless Fairy Companion. Though I guess the closest there is Lion, kinda. And technically he doesn't have a transformation trinket.
He fits everything else though.
Barring the completely different art styles, a part of me thinks it would be cool to see some crossover with Miraculous Ladybug.
He was just resting, mang. Hakuna Matata.
Rules of the Internet 45. Rule 45 is a lie. Check out my art if you notice. Next crossover will be with one of WB's superhero franchises, come to investigate these illegal aliens. Unfortunately it'll be Teen Titans Go!
Which doesn't apply for Peridot. If only there was an available widower to marry her and make her Steven's Wicked Stepmother?

Sapphire sprites.
◊
The Crystal Caverns A bird's gotta sing.