Drifting Meadow

Late in the game, when one more land does nothing and one more spell does everything, the discard-for-a-card clause converts a dead draw into a live one for two generic mana. That is the math that justifies an otherwise mediocre mono-white land: a manabase liability becomes a hedge. You can run a slightly land-heavy build knowing the floor on each excess piece is a fresh card rather than a wasted draw. The enters-tapped clause is the price for that flexibility, costing you a tempo step on the turn you play it in exchange for an effect that can never be a total blank. This kind of land established a durable template (a fixing source that doubles as a smoothing mechanism), an idea echoed years later in the Onslaught cycling lands, the Amonkhet cycling duals, and every cantripping utility land that followed. This one is the plainest version of the concept: no painland sting, no fetch interaction, just a white source that quietly refuses to be the card that loses you the game.