Snow-Covered Forest

One of five basic lands whose supertype is the entire reason it exists. Tapping for green is the part that does not matter; the word "Snow" in the type line is the whole point. Ice Age introduced snow as a supertype that other cards could read off of, and this is functionally identical to a plain Forest in every way except that it satisfies the conditions of cards that count or require snow permanents. That makes it one of the rare basics where the deckbuilding decision is real: running the snow version costs you nothing on the surface, but it telegraphs the snow payoffs in your list and opens you to the small handful of effects that punish or interact with snow sources. For long stretches of the game's history the snow supertype lay dormant between its Ice Age origin and later revivals, which means this card spent years as a curiosity that did nothing its plain counterpart did not. Its identity is parasitic in the design sense: it is worthless without a card elsewhere asking "is this a snow permanent?" and quietly excellent the moment one shows up. A basic land that is also, technically, an enabler.