Circle of Protection: Blue⁣ - Seventh Edition⁣ (Common)⁣ [7]

Circle of Protection: Blue is an enchantment that prevents damage from a blue source of your choice for just one mana. This card is valuable in matchups against blue decks, allowing you to negate a key spell or creature's damage. Its low cost makes it a solid defensive option, but it only protects against one instance of damage each turn, so timing is crucial.