Orochi Merge-Keeper

A mana dork with a conditional overdrive built into its own body: tap for one green, or tap for two the moment anything is stuck to it. The design worth studying is the deliberate breadth of that condition. "Modified" is one of green's most permissive states, reading equipment, auras, and counters alike as the qualifying condition, so the doubling turns on from an entire ecosystem of effects rather than one narrow bonus. That means the same creature is a payoff in an aggressive counters build, an equipment shell, or an auras deck, and the ramp scales with a board development already underway. The friction is honest: as a bare 1/1, it produces the same green a vanilla dork would, and it costs a resource elsewhere to unlock the second point. But the subtle move is rewarding the modification rather than producing it. Counters, equipment, or enchantments laid down for their own reasons come back with a mana engine riding along, so the doubling arrives as found value instead of a plan to assemble. Among mana creatures that fold ramp into a second axis (elves that reward creature counts, druids that reward lands), this one landed on the modification synergy that green kept circling as more of its cards began caring whether a creature had been altered at all.