Cleaver Blow
Multicleave turns a removal spell into a slider you build at cast time: pay nothing and the effect arrives choked with restrictions, or spend an extra per clause to peel those restrictions away one at a time. Left uncleaved, it kills only a small nonblack creature an opponent controls, gives both players a card, costs you and its controller two life, and leaves behind a tapped Spirit. Cleave it fully and the target opens up to any creature, the extra draw and the life loss vanish for the opponent, and the flier arrives untapped on your side. The interesting part is that the brackets are a menu rather than a fixed sequence: each lets you choose which paired set of words to erase, so you can drop the mana-value cap in one situation and shed the symmetric draw in another, buying off exactly the handicaps that hurt you most this turn. That modularity along a single price axis distinguishes it from an overload spell, where you pay one lump sum for the whole upgrade and take it all at once. Here the friction is itemized, and you decide the order. It exaggerates, to the point of comedy, the negotiation every removal spell quietly makes: how much mana are you willing to spend to make the answer clean, and which parts of the mess are worth removing first?
Rules text
(You may pay an additional any number of times as you cast this spell. For each time you do, choose a paired set of square brackets and remove the words in between.)
Destroy target [nonblack] creature [with mana value 3 or less] [an opponent controls]. You [and its controller each] draw a card [and lose 2 life]. Create a [tapped] 1/1 white Spirit creature token with flying.