Tainted Peak

The conditional dual that asks you to already own the color it produces. Tap it for one colorless mana with no strings; tap it for black or red only with a Swamp on the battlefield, which means the second color is a reward for having already committed to the first. This is the pain-land logic turned inside out: rather than charging life like the Apocalypse duals or entering tapped, it gates its full output behind a basic-land type, making it strongest exactly when you least need the fixing and weakest in the multicolor opening where dual lands earn their keep. The design reads as a black-leaning land that occasionally splashes red, not a true fifty-fifty dual, and the colorless fallback means it never sits dead in your opener. It belongs to a cycle of five built on the same template, each pairing a primary color's basic-type condition with one allied color, which is why these never anchored greedy three-color manabases the way fetch-and-shock arrangements later would: the conditional dual rewards consistency, not reach. A quiet, honest piece of fixing for a deck that already knows what it wants to be.