Surtland Frostpyre

A red mana source that, once you have paid its steep second cost, converts into a small sweeper with two cards of selection folded in. The math is the whole tension: it taps for a single red, but the sacrifice ability demands , an Izzet-locked activation that wants blue the land cannot itself produce. That gap is the balancing act, keeping it from being a splash-free reset button in any red deck that only wants the fixing; you have to actually build the manabase toward it. The reward for that commitment is a sorcery-speed two-damage sweep that clears small creatures and token boards while it digs, delivered from a permanent that spent the early turns quietly pretending to be an ordinary tapland. It is a manabase slot that matures into a late-game answer, the kind of design that lets a control shell shave a dedicated sweeper by hiding one in the land count. The scry attached to the damage matters more than it first reads: it sets up your next few draws at the exact moment you are spending a land drop's worth of value to reset the board, so the tempo cost of losing the land is partly repaid in card selection. What the enters-tapped clause and the color-hungry activation buy together is the right to run a threat-answer in a slot that asks nothing to include and only demands commitment when you decide to pull the trigger.