Meat Locker // Drowned Diner
Split cards have always carried a hidden tax: you draw both halves, but the board usually only wants one, and the mode you cannot use rots in hand. This design answers that tax by handing you the second mode as a permanent instead. Cast one door now, leave the other locked on the battlefield, and pay to unlock it later at sorcery speed whenever the mana and the board line up. Meat Locker is a stun-counter tap-down: two counters means two untap steps eaten, so the creature stays offline longer than a single Frost Breath style freeze would buy, and anything that would let it untap early gets absorbed by removing a counter instead. Drowned Diner is the card-advantage half, a filtered refill netting two. Neither effect breaks new ground; blue has been printing tap-downs and draw-then-discard smoothing for its entire history. The novelty is the deferral. A single card becomes two triggers spread across two different turns, so the two jobs never compete for the same slot and neither expires in hand while you wait for the right moment. The combined eight mana value is a red herring; the structure assumes you almost never pay both costs at once. What you are buying is card selection that also holds a body offline, delivered on your own schedule rather than the split card's usual take-it-now ultimatum.
