Ghired, Conclave Exile

Populate has always been the mechanic that punishes you for not already winning: it copies a creature token you control, so it does nothing until you have a token worth duplicating, and the best token is usually one the mechanic itself cannot make. This design closes that loop in a single package. It arrives already holding the thing it wants to copy, minting a 4/4 trampling Rhino the moment it enters, so the first attack has something to populate off of instead of stalling until you assemble a board. Then it hangs the mechanic on combat rather than a fragile enchantment engine, which rewrites the math entirely. Each swing manufactures another Rhino that enters tapped and attacking, folding into the very attack that produced it rather than waiting a turn to matter. The catch, and the reason the 2/5 body reads defensive, is that populate is an attack trigger: it fires only when Ghired himself charges in, so the payoff demands putting him in harm's way every turn. The tall backside is there to survive that repeated commitment, keeping the copier on the board long enough to keep printing Rhinos. Naya token builds had long leaned on pieces like Trostani, Selesnya's Voice and Rootborn Defenses to squeeze value from populate, but those always needed a separate payload to duplicate. Here the payload, the copier, and the aggression are the same card, and the board snowballs because attacking is both the cost and the reward.