City Pigeon

The distinction that matters here is buried in one word: this Bird pays out when it leaves the battlefield, not when it dies. Older cheap chumps that dropped a consolation prize on death only paid once, when combat or a removal spell caught them. Widen the trigger to any exit and the arithmetic changes entirely: bounce it, flicker it, or sacrifice it to something that wants a body, and the Food token still arrives, so a blink or recursion shell turns it into a spigot that keeps producing artifacts as long as you keep cycling it in and out. The Food itself is intentionally unglamorous (three life for a two-mana activation plus a tap is not a payload anyone builds a plan around), which is precisely why the trigger, not the token, is what earns the card its slot. A one-mana flyer that quietly generates artifact tokens for sacrifice fodder, artifact counts, and lifegain thresholds without costing you a card is doing real structural work, even though nothing on the front of it looks like much. Left alone, it flies over for a point and leaves a snack. Slotted into a chassis that abuses the leaves-the-battlefield wording, it becomes a drip feed that never dries up.