母圣树 (CS Boseiju, Who Shelters All)

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母圣树须横置进场。 ，支付2点生命：加到你的法术力池中。若该法术力用以支付某瞬间或法术咒语，则该咒语便不能被咒语或异能反击。

273 CHK • CSRalph Horsley

™ & © 1993—2004 Wizards of the Coast

Notes: TODO: Update Copyright

Legal in: Modern,Kamigawa Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

Boseiju, Who Shelters All Legendary Land Boseiju, Who Shelters All enters the battlefield tapped. {T}, Pay 2 life: Add {C} to your mana pool. If that mana is spent on an instant or sorcery spell, that spell can't be countered by spells or abilities.

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View this MTG card on Gatherer

12/1/2004
The spell can't be countered if the mana produced by Boseiju is spent to cover any cost of the spell, even an additional cost such as a splice cost. This is true even if you pay an additional cost while casting a spell "without paying its mana cost." 
12/1/2004
Suppose mana produced by Boseiju is spent on a spell and an effect creates a copy of that spell. The copy can be countered, even though the original can't.

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