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From $3.50
'Counter target spell unless its controller pays {1}.
From $2.00
'If you tap a permanent for mana, it produces twice as much of that mana instead.
From $44.75
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $137.25
'This artifact doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact. At the beginning of your draw...
From $58.00
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $42.25
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $2.75
'Whenever a player taps a land for mana, this enchantment deals 1 damage to that player.
From $49.75
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $1.25
'Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
