Savior of the Small

A 3/4 body that pays you for pressing the board, and the payment is gated behind an inversion of how most creatures work. Survival checks at your second main phase whether this creature is tapped, which in practice means you attacked with it that turn: the mechanic asks you to commit it to combat before it does anything, then rewards that commitment on the swing back. Park it as a blocker and the ability goes dark, since a defender left untapped never satisfies the trigger. That fenced-in condition is what keeps the recursion honest. Mana value three or less, one target, returned to hand rather than the battlefield, so there is no looping a real threat here; the engine points squarely at mana dorks, cheap value creatures, and utility bodies you want to recast. One card per attack, and only if you were willing to expose the creature to get it. The 3/4 frame fits the ask well: sturdy enough to trade up in the red zone or connect against a smaller board, then cash the tap into a creature returned from your graveyard. The wrinkle worth naming is that the tapped requirement is agnostic about how the creature got tapped, so an outside tap outlet lets you generate value without ever declaring an attack. Left to attack on its own, this is white attrition that refills your hand from the graveyard one small creature at a time.