Interceptor Mechan

The recursion is the sticker price; the growth is what you're actually paying for. Coming down as a 2/2 flier that hands back an artifact or creature card from the graveyard is a fair rate on its own, the kind of value body that keeps a grinding midrange deck stocked. What turns it into a threat is the Void clause, which checks two independent conditions at your end step: did a nonland permanent leave the battlefield, or did a spell get warped this turn? The first is the broad one, and it's easy to satisfy without straining the deck: sacrifice a creature, flicker or bounce something, trade in combat, or watch a token die. Note the wrinkle in its own entry ability: returning a card from the graveyard moves an object that was never a battlefield permanent, so nothing "leaves" for the counter to notice. The recursion and the growth are two separate engines that happen to share a color pair. Void grants a single +1/+1 counter per end step regardless of how many events qualify, so the payoff is a steady, evergreen bump rather than a stacking snowball, which keeps the flier's clock honest while still rewarding a deck built around churn. It's a value creature that grows in the exact currency Rakdos already spends: permanents cycling out of play and spells warped on the way in.