Choco-Comet

Two spells stapled together in a way that pretends to be one. The X-damage half is the venerable Fireball template, the burn effect that scales with whatever mana you can pour in, and by itself it would be a plain reprint of a decades-old idea. What the second clause does is convert the leftover: the same lands that fueled X now feed a token that grows every time you drop a land. Cast it late on a big X and you have already spent your mana; cast it early for a modest X and the Bird becomes the payoff, a 2/2 that swings for more each turn you keep hitting land drops. That is the tension the card sews together: the burn wants your mana all at once, the Bird wants it spread across turns, and you rarely get to serve both appetites in the same game. Note the token is green, not red, which quietly attaches a splash of off-color permanence to a mono-red sorcery of removal and reach. The Bird's trigger is generous in the abstract but self-limiting in practice, since the +1/+0 lasts only until end of turn and asks you to have lands still coming; it rewards a low, land-heavy curve rather than the spell-dense shells that usually want a Fireball. The result is a scalable burn spell that leaves a body behind, priced so that the more you commit to the damage, the less you get from the Bird.