Actually, this spell returns all nonland permanents to any player's hand who played one during the turn, so if you flashed a different creature onto the battlefield before playing it, that too will be returned to your hand
It's also in colorless so any color has access to it
(7/1/2013) If you change the creature type of a Sliver you control so it's no longer a Sliver, it will no longer be affected by its own ability
You may cast the creature later from exile.) Number 173 Language Franais Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless Rulings (6/6/2025) An adventurer card uses only its non-Adventure characteristics in every zone except the stack, as well as while on the stack if not cast as an Adventure
Thankfully, unlike The Brothers Wars Meld cards, both halves can be found at uncommon, rather than mythic