Cut // Ribbons

Two cards on one slot, but staged in time rather than held in hand: point four damage at a creature early, then dig the same card back out of the graveyard later to drain the table. The front half is honest two-mana removal that earns its slot with no strings attached. The back half is what gives the card its longevity. Aftermath is a one-way trip (cast from the graveyard, then exiled), so Ribbons is a single detonation rather than a recurring engine, and that constraint is exactly what pays for the open-ended X. The structure means the deck spends one card as removal in the early turns and converts it to a finisher once the board stops mattering, without carrying the deckbuilding cost of running both effects separately. It also sidesteps discard and looting in a way a normal spell cannot: milling or pitching this doesn't waste it, it stages the payoff precisely where the mechanic wants it, in the yard. As multicolor design it uses each color in sequence instead of at once, red answering the board and black closing the door, and it asks the deck to treat reaching the graveyard as a plan rather than an accident.