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From $32.25
'Whenever a creature enters, you may add an amount of {C} equal to the number of creatures you control that share a creature type with it.
From $30.25
'At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you.
{T}: Add {C}{C}.
From $82.00
'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 $49.50
'Whenever a creature enters, you may add an amount of {C} equal to the number of creatures you control that share a creature type with it.
From $2.00
'If you tap a permanent for mana, it produces twice as much of that mana instead.
From $0.50
'Counter target spell. If you control a Wizard, add an amount of {C} equal to the amount of mana spent to cast that spell at the beginning of your next...
From $35.50
'At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you.
{T}: Add {C}{C}.
