Voracious Null

A sacrifice outlet and a payoff folded into one cheap body, sitting low enough on the curve that the combination does the most damage. The activation asks for a tax (one and a black, plus another creature off the board), and the sorcery-speed clause locks it out of combat tricks and end-step shenanigans: you commit to growing this thing on your own turn, in the open, with no instant-speed bluff available. What you get back is steep for the price, two +1/+1 counters per activation, so a couple of fodder bodies turn a modest 2/2 into a genuine threat inside a single main phase. The design lives in tension between those two halves. Hold a wide board and it grows fast but telegraphs the plan; run it lean and it sits idle as a 2/2 with nothing to eat, the ability dead until you build a board worth feeding it. The counters being permanent (rather than a temporary pump) is what keeps the investment relevant: the growth always sticks, so the only question is whether you have enough disposable creatures to spend. It wants to sit among expendable bodies it can convert into a single large attacker, folding a wide board into one threat rather than spreading it across the table.