Markov Dreadknight

The pump ability prices itself in cards, not just mana, and that is the tension worth sizing up. A 3/3 flier for five sits below rate by itself, but the activation converts dead cards in hand directly into a growing evasive threat: each plus a discard buys two +1/+1 counters, with no ceiling. That discard cost is the throttle. It rewards a hand that has run out of relevant plays anyway and punishes one still holding answers, so the body grows fastest exactly when the topdecks are worst. Because the counters are permanent, the threat does not reset; an opponent has to deal with it the turn it gets large or watch it carry the game through the air. The activation is open at instant speed, so a flier that sandbagged its growth can arrive at 5 or 7 power (base 3 plus two counters per activation) and then dump the rest of the hand into more counters after blocks are declared. That window is the part that makes the math hard for a defender: the size on the battlefield is never the size it will swing for. Built for a black aggressive shell willing to empty its hand, it occupies the slot where a deck wants a mana sink that also closes the game, folding finisher and flood insurance into one card.