Sapling Nursery

Affinity has almost always lived in artifacts, where the count you're paying down is a resource you deploy on purpose. Bolting it to Forests reroutes the discount through the one thing a green deck is already doing: playing lands. The printed looks prohibitive until you notice that affinity chews through the generic six, so a board with six or more Forests hands the whole thing over for its floor, and the same lands you counted for the discount keep working after it resolves. That's the wrinkle the design leans on. Every land drop from then on manufactures a 3/4 reacher, so the enchantment doesn't just want lands to arrive cheaply; it wants them to keep arriving, and it rewards the fetch-into-Forest, extra-land-per-turn shells green has assembled for decades. The exile clause is the payoff and the ceiling in one line: it converts the accumulated Treefolk board and the Forests underneath it into an anti-sweeper wall for a turn, but doing so retires the token engine for good, forcing a genuine choice about when the standing army outweighs the factory that keeps building it. It's a clean piece of tribal-and-lands convergence: a Treefolk payoff whose cost, whose trigger, and whose escape hatch all read off the same green resource.