A-Llanowar Greenwidow

Domain usually works as a scaling knob on a spell's payload: more basic land types, bigger burn or bigger buff. This inverts the relationship, using the mechanic to price a recursion loop rather than amplify an effect, and it inverts the color it usually favors. The reanimation clause opens at but sheds a mana for every basic land type you control, so a mono-green pile that runs only Forests still pays five, while a five-color manabase built to feed it drops the activation toward one. That gradient is the whole design: a green beater that trades color-fixing greed for grindy resilience, rewarding the stretched wedge-and-shard land count that mono-green otherwise has no reason to want. The finality counter is what keeps the loop from spiraling; the return is a one-shot, so the Spider comes back once and exiles on its next death rather than recurring forever. The line is instant-speed but the body returns tapped, so this is not a flash blocker: it is an end-step rebuild after a wrath, or a value activation held until the mana is free. What you actually buy over a game is a single guaranteed rebuy of a reach-and-trample body, priced by exactly how many basic land types your mana base is willing to assemble. Coupling a creature's second life to the breadth of your lands, more than the 4/3 stat line on the front, is where the card earns its slot.