Rumbleweed

Eleven mana on the printed line, minus one for each land in your graveyard: the cost is a slider you set with your own manabase. Fetches cracked, self-mill, cycling lands, sacrifice-a-land ramp, dredge-adjacent digging, all of it drags the price down, and a deck committed to burying its lands lands this for a fraction of the figure on the tin. That is the design tension: the card is priced against how much of your manabase you have already spent, so the more intentional your graveyard, the cheaper the payoff. The 8/8 with reach, vigilance, and trample is the least interesting part. The reason to build toward it is the enter-the-battlefield anthem, handing the rest of your creatures +3/+3 and trample until end of turn, which reframes the card as a finisher you fire into an already-deployed board rather than a lonely top-end beater. It wants a wide team waiting for it, then converts a stalled position into a lethal swing in one attack step. The neat bit of alignment is that the shells which make it cheap and the shells which make the anthem matter tend to be the same shell: a deck grinding its own lands into the graveyard is usually the same go-wide deck that turns a board-wide pump into a kill. Enabler and payoff share a single engine, which is what keeps the whole absurd cost line from being a joke.