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From $178.25
'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 $49.25
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $47.00
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $60.25
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $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}.
From $43.50
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $90.00
'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 $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 $2.00
'If you tap a permanent for mana, it produces twice as much of that mana instead.
From $48.75
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
From $61.25
'Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.