Kamahl, Fist of Krosa

Two activated abilities answer two different impasses. The first turns any land into a 1/1 creature for the price of one green, which sounds trivial until you remember it makes lands legal targets: for combat, for sacrifice fodder, and (pointed at an opponent's land) for a precise, repeatable Stone Rain that only needs a removal spell to finish. The second is the overrun green ramp always wanted attached to a body it could keep, pumping the whole board +3/+3 with trample for a hefty but castable cost, then doing it again next turn. Mass animation plus a finisher: that pairing is what makes him a one-creature win condition rather than a midrange beater. He converts a stalled board of mana producers into lethal damage, and converts a stalled mana base into one too. The 4/3 frame is the bill for all that: he dies to nearly anything that would kill a creature, so the line that matters is untapping with him alive and the mana to point one of his abilities somewhere useful. He represents a particular flavor of green from an era when the color's late game was less about a single fatty and more about converting accumulated permanents into a board that overwhelms, with Kamahl himself as the conversion engine.