Cutthroat Centurion

The design here rests on a self-limiting valve: the pump activation fires only once per turn, so this is not a Nantuko Husk that can eat your entire board at instant speed to grow arbitrarily large. That single restriction reshapes what the card is for. Instead of a sacrifice engine that scales without bound, it becomes a modest attacker that can trade up once per combat by feeding it a spent token, a dying creature, or an artifact that has already earned its keep. The Phyrexian Warrior body is deliberately plain: a 2/2 that turns into a 4/4 the moment you have fodder to spare, and stays a 2/2 the moment you do not. The artifact-or-creature clause is the quietly generous part, since it lets the card operate as a value outlet in a deck built around neither a pure aristocrats plan nor a pure artifact plan, so long as something is expendable. What it wants around it is a steady supply of chaff: Treasure tokens, servos, expiring blockers, anything whose second use is better than its first. The once-per-turn cap keeps the payoff honest, so the card reads as a floor-raiser for a sacrifice-adjacent deck rather than a combo piece, a body that punishes the opponent for leaving a race close rather than one that ends the game outright.