Leashling

A six-mana 3/3 that refuses to commit to the battlefield, this colorless Dog reads at first like a recursive blocker that never quite dies, and the design problem it probes is exactly that: how to make a creature you can replay endlessly without simply handing its controller free value. The answer is blunt. Each return demands a card from your hand placed on top of your library, so every loop costs a real card now and locks your next draw to a known quantity. That price points the card in two directions at once. As pure defense it is clunky and expensive, ducking removal or a bad block at a steep tempo and card cost; as a setup engine it inverts the bill into the point. Pair the bounce with effects that reveal, draw from, or care about the top card, and burying a chosen card becomes deliberate placement rather than a tax: you are planting exactly what something else wants to find. That second reading is the narrow, genuinely distinct lane a creature like this occupies. The body is incidental; the interesting version of this card is built around the act of putting a card on top of the library, treating the return as the delivery mechanism rather than the escape hatch.