Magnetic Mountain [Arabian Nights] The Akazaya Nine Whenever a land's ability causes

Whenever a land's ability causes you to add one or more mana of the chosen color

you may change "target black spell" to "target blue spell

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You may cast Demilich from your graveyard by exiling four instant and/or sorcery cards from your graveyard in addition to paying its other costs

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Magnetic Mountain [Arabian Nights] The Akazaya Nine Whenever a land's ability causesSet: Arabian Nights Type: Enchantment Rarity: Uncommon Cost: {1}{R}{R} Blue creatures don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player may choose any number of tapped blue creatures they control and pay {4} for each creature chosen this way. If the player does, untap those creatures.