Whirlpool Whelm

A bounce spell with a lottery attached. The floor is a clean Boomerang variant aimed at a creature: tempo, a frozen attacker, a reset on an entered-the-battlefield trigger. The upside is the clash, which can convert that temporary bounce into something closer to permanent by stacking the creature above its owner's next draw, costing them a turn just to replay it. The design lives entirely in that "if you win" clause, and clash is one of the more honest gambling mechanics Magic has built: both players peek at their own libraries, the higher mana value wins, and each then decides independently whether the revealed card stays put or goes to the bottom. The upside is real but never guaranteed, so the spell is priced as a bounce that occasionally overperforms rather than one that always does. What clash rewards is a deck loaded with expensive cards, because your odds scale with how heavy your curve sits relative to your opponent's. That puts a quiet tension into deckbuilding: the spell wants a high curve, but a high curve does not want a two-mana tempo spell. The mismatch is why the card reads as a value-positive bounce on paper and plays as a coin flip with a good consolation prize. The reveal step also leaks soft information about both libraries to both players, a side effect that has nothing to do with the creature being bounced.