Rust Harvester

A one-drop that eats its own scrapyard to grow. Two mana, a tap, and an artifact card exiled from the graveyard buys a permanent +1/+1 counter and a burst of damage sized to the creature's new power. That damage clause is the twist that separates it from a plain firebreathing beater: because the counter resolves before the damage, each activation deals one more than the last, so the machine ratchets upward as the graveyard empties. What starts as a slow 1/1 becomes a repeatable, escalating burn spell that can point anywhere, and menace keeps the body threatening in combat while the graveyard serves as ammunition. The fuel supply is the constraint that pays for all of it: no artifacts in the yard, no growth, so the card asks its deck to be manufacturing and discarding metal on its own axis rather than carrying itself unassisted. It rewards a build that treats spent artifacts as resources rather than losses, converting the wreckage of an attrition plan into reach that lands on a planeswalker, a blocker, or a face without asking for a new attack step. Think of it as the dividend at the end of an artifact grind, not the engine that produces the grind.