Contract Hero

Two triggers share this 2/3 body, and they were built to talk to each other. Arriving on the battlefield drops a Treasure, which reads as color-fixing until you get to the attack step, where the pump ability asks you to sacrifice an artifact or discard a card for +2/+0. The token from the first trigger is exactly the artifact the second one wants to eat, so the card can swing as a 4/3 the very first time it attacks with no help. What keeps this from being a plain beater is that the attack cost is a choice, not a tax: pitch an artifact when you have Treasures to burn, discard when your hand is clogged, and either way you have handed a sacrifice-matters or discard-matters engine a repeatable trigger to build around. Aristocrat outlets that want artifacts dying, madness and graveyard payoffs that want cards in the yard, ramp shells hungry for another rock: each of those gets a small, dependable feeder. Standing alone, it is a fair three-drop with a mana-smoothing floor and a one-shot pump. Slotted into an engine, it becomes a recurring source of extra damage that keeps asking what you have sitting around that you would rather turn into value.