Hallowed FountainutilityBudget$21.27A blue-white dual land that provides the same two colors and can enter untapped at a life cost. It fills the same role in multicolor mana bases.
Glacial FortressutilityBudget$2.24Produces white or blue mana in the same color pair and is commonly used as a functional dual in UW decks. It is usually cheaper to acquire but depends on controlling basic land types to enter untapped.
Adarkar WastesutilityBudget$5.33A UW color-fixing land that taps for either white or blue immediately. It trades pain for speed, making it a close functional substitute in many decks.
Seachrome CoastutilityBudget$1.99An efficient white-blue dual that often enters untapped in the early game. It serves the same fixing role with a tempo-oriented drawback late game.
Flooded StrandutilityBudget$80.15A fetch land that finds white or blue dual lands and basic Islands/Plains, helping cast the same spells as Tundra. It is not a direct color source itself, but is one of the strongest functional mana-base partners for UW.
Prairie StreamutilityBudget$0.28A UW dual that can enter untapped if you control enough basics. It provides the same colors with a budget-friendly drawback compared to a premium dual.
Nimbus MazeutilityBudget$7.29This land can produce blue or white mana under the right board conditions. It is a close two-color fixer for decks built to support it, though less reliable than Tundra.
Port TownutilityBudget$0.17A white-blue land that can enter untapped by revealing a basic Plains or Island. It offers the same colors and is often a strong budget replacement.