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Nonbasic lands don't untap during their controllers' untap steps.
Abilities, attacks, weakness & resistance
Other cards from Ultimate Masters
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Back to Basics (UMA-46 foil) is a blue enchantment reprinted in Ultimate Masters. It prevents nonbasic lands from untapping during their controllers' untap steps, which can lock opponents reliant on nonbasic mana. In deck construction it commonly supports control or prison strategies that restrict opponents' resources while leaving basic-land-based decks less affected.
Catalog pricing data as of 30 Apr 2026, 17:05