Windswept Heath

One life and a land drop, traded for any card that carries the printed type Forest or Plains, fetched onto the battlefield untapped and followed by a shuffle. That last clause carries the real structural weight: the shuffle is what made this cycle the load-bearing engine of fetch-and-flip libraries, letting a Brainstorm or a scry topdeck be rerolled at will. This generation of fetchlands was among the first to pay life and pull a specific dual basic type, and the design has held up so cleanly that the same template was reprinted nearly verbatim a decade later. The genius of the wording is "Forest or Plains card" rather than "basic Forest or basic Plains": it reaches any land bearing the printed type, which is what turned these into the spine of multicolor manabases once shocklands and dual lands started wearing those subtypes. The life cost is the only brake, and it is a real one in formats where damage adds up, but the fixing, the deck-thinning, and the library reset are bought for a single resource most decks were spending anyway. What looks like a quality-of-life land is actually the connective tissue that lets greedy color combinations exist at all.