Unlucky Drop

The tempo hidden in that "top or bottom" clause is what earns this four mana instead of two. A pure bounce like Boomerang hands the card back for immediate replay; a straight tuck-to-top only stalls the draw step. This splits the difference, but the wrinkle worth reading carefully is that the owner picks which end their permanent goes to, not the caster. So the effect is not a clean exile you dictate; it is a choice you impose on your opponent, and the value comes from making both ends bad for them. Bounce a token, and it evaporates regardless of which end they choose (a token ceases to exist on the way to the library). Point it at a topdeck-reliant threat and the owner is forced to weigh recasting it against blanking their own next draw. The catch that pays for the flexibility is target width. Cheaper answers usually pick one lane and eat the tighter cost; this covers artifact or creature at instant speed, which matters when you cannot tell until their turn whether the equipment or the wearer is the problem. It declines to touch enchantments, planeswalkers, or lands, so the "either target" framing is narrower than it looks. This belongs to the soft-answer family alongside Repulse and Void Snare: interaction that trades card economy for the guarantee that whatever you point it at is gone for at least a turn.