Canker Abomination

The body you get is dictated entirely by the player across the table. Choose an opponent with a clear board and a 6/6 sticks for the price of four mana; choose one mid-grind with four creatures down and you are fielding a 2/2, sometimes a corpse that never finishes arriving. The card is largest exactly when the opponent has accomplished the least, which flips the usual incentive: you want to deploy it early, against an undeveloped board, and you eat the penalty for waiting. The counters are the detail that rewards close reading. They are genuine -1/-1 counters resting on the creature, not a static shrink baked into the ability, so the body's fate stays mutable after it lands. Anything that strips counters mends it back toward its printed size; anything that proliferates twists the knife by stacking more. Built on Golgari hybrid pips, it slots into either black or green without asking for both, and the dual nature gives the whole thing its character: a stat line whose ceiling reads like a misprint and whose floor is governed by someone who is not you. Most creatures put a fixed number on the table. This one puts a question to the opponent's board and reads the answer off it.