It was the addition of 120 cards from Antiquities (23 cards), Arabian Nights (10 cards), Legends (55 cards) and The Dark (32 cards), two cards that returned from the base set that were not printed in Revised and a subtraction of 50 cards from the Revised setlist
"Conceptually what we were aiming for just didn't really make sense as any existing card type." Mark Rosewater spoke on his podcast once about how its tricky to dial in the balance of a new thing like this specifically the very first Equipment cards, in that instance
Although the two abilities arent really related, flashback at instant speed is definitely powerful
I'll snag one for Sakashima of a Thousand Faces
It's comparable to Leyline Binding, another flash permanent that exiles a target, but Solitude provides three huge benefits
At just U, the Bottomless Pool side offers a cheap, reusable bounce effect that could provide some interesting tempo plays in limited