Early Winter

In Commander, Early Winter is a stax piece aimed squarely at the format's greedy four- and five-color mana bases, where shocklands, triomes, and fetchlands dominate and basics are a rounding error — opponents can find themselves locked off colored mana for a full rotation of the table. In competitive and higher-bracket pods it loses some teeth, since those decks answer it fast or rebuild around it, but in mid-power metas it can singlehandedly buy you two or three extra turns. In 60-card formats like Modern and Pioneer, Early Winter is a novelty at best — the card does nothing on the turn you play it and opponents untap immediately on their next upkeep, making it too slow to matter in a format measured in three-turn clocks. Legacy and Vintage have better prison effects at lower costs, and Standard play is situational enough that more reliable interaction earns the slot.