Mouth // Feed

The split-card structure here is doing the synergy work that two separate cards would normally outsource to a deck: the front half makes a 3/3, and the back half draws for each creature you control with power 3 or greater. Mouth front-loads the exact body that Feed is built to count, so a single physical card carries both the setup and the payoff for its own draw clause. That self-sufficiency is the design idea. The Hippo alone clears the power-3-or-greater bar, meaning even on an otherwise empty board the aftermath half refills one card; alongside other midsize bodies, the draw scales. Because the two costs are paid separately, the timing flexibility lives in the sequencing: with enough mana you can resolve Mouth into the graveyard and fire Feed the same main phase for an immediate Hippo-plus-draw turn, or bank the back end across two turns and wait for a wider board. Aftermath's exile clause caps the engine: once Feed resolves, the card is gone, so this is a one-shot refuel rather than a repeatable loop. What lands is a card-advantage spell that asks only for a board of creatures big enough to register, which a green deck wanted to assemble anyway, folding the prerequisite and the reward into one card slot.