Clay Champion

The X in the cost pays for a body, but the abilities never look at X at all: they count the and you actually spend to cast it. That is the wrinkle. You can pay the however your mana allows, and the card checks the color of what you tapped, not the total. Feed it pairs and it arrives as a self-growing threat, three counters per pair stacked on its own 2/2 frame. Feed it pairs and one counter per pair funnels onto up to two other creatures you control instead. Do both and you split the payoff as it enters. The design turns a plain construct shell into a variable Selesnya counters payoff whose ceiling is set entirely by how much double-pip green and white your mana can produce in one turn, not by how high the generic climbs. It belongs to a line of X-cost payoffs that reward mana quality over quantity: the question is not how much you can pay but exactly which symbols you can produce, and here the symbols are strictly paired. A deck built to spew and can make this a game-ending swing; a two-color splash that squeezes out one pair gets a modest anthem. Because the distribution is your choice each time, it flexes across the game: an early stabilizer that props up two attackers, or a late haymaker that dumps counters onto whatever survived the wrath.