Junkyard Genius

An overrun on a stick, but read the two keywords it hands out before dismissing the 2/2: menace forces two blockers per attacker, and haste means whatever just resolved swings the same turn. Together they convert a clogged, stalled ground into an alpha strike defenders cannot chump their way out of. The catch is the fuel line. The activation eats an expendable creature or a spent artifact each time it fires, so the shell built around it keeps a wide, disposable board on hand, always another body to feed into the next boardwide +1/+0. The Powerstone that arrives on entry defrays part of the reactivation cost, but its restriction steers construction more than it looks: that colorless can't cast any nonartifact spell, so it won't help you deploy the sacrifice fodder that isn't an artifact, only pay ability costs and cast artifacts. It covers the generic mana in the activation and redeploys the very artifacts you plan to feed into next combat, which quietly biases the deck toward artifact bodies over a fuller spread of colored spells. The body itself barely factors into the swing; the recurring, board-wide overrun handed to everything else is the payload. What it really wants is an aristocrats plan aimed at combat rather than the drain trigger: dying bodies converted into damage, a sacrifice engine that closes the game by attacking instead of grinding an opponent down through incremental life loss.