Ice Magic

Blue's three ways of un-answering a creature (bounce it, put it away for a turn, bury it in the library) usually live on three different cards at three different prices. This folds all of them onto a single instant and turns mana into the dial: pay the base cost alone for a straight bounce, the pure tempo play a topdeck can undo; add the middle increment and the creature goes to its owner's library instead of its owner's hand, though the mode's balance lives in who chooses (the creature's owner picks top or bottom, so the "removal" is a soft delay, not a tuck you control); pay the full top-tier freight and the creature is shuffled away, about as close to permanent as blue is customarily allowed. The thread running through every rung is deferral rather than destruction: even the most expensive mode returns the creature to the deck rather than a graveyard, and the owner's agency over the mid-tier destination stops it from being a strict upgrade over the cheap end. That is what keeps a card covering this much ground from being oppressive. Early it survives you; late it buries a problem, and the whole design bets that "buried" reads as close enough to gone.