This is 100% vintage playable. No question.
I mean, you could put it into a deck. You could put Squire into a deck. You could put Seeker of the Way into a deck. (Sorry, Rich!)
But what niche does this settle into? What deck is reaching for a 2-mana limited bounce with a scry upside...?
Scry 2 is exponentially stronger than scry 1. It's not just a singleton better, but a multiple of it.
This returns any card you don't control. That's infinitely better than returning only a creature.
The closest comparion is repeal. Repeal sees play. I see this as a consideration depending on the environment. This card will see vintage play and it will be a perfectly serviceable card (unlike squire).