冷静な反論

Text:

金属術 ― あなたが３つ以上のアーティファクトをコントロールしている場合、冷静な反論を唱えるためのコストは少なくなる。
呪文１つを対象とし、それを打ち消す。

Rulings:

• 1/1/2011 Stoic Rebuttal’s metalcraft ability functions while Stoic Rebuttal is on the stack.
• 1/1/2011 For the purpose of determining whether the cost reduction applies, the number of artifacts you control is checked as you cast Stoic Rebuttal, before your last chance to activate mana abilities to pay for it. For example, if you control three artifacts, you could determine that Stoic Rebuttal costs <img src="/Handlers/Image.ashx?size=small&amp;name=U&amp;type=symbol" alt="Blue" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=U&amp;type=symbol" alt="Blue" align="absbottom" /> to cast, then sacrifice one of those artifacts to activate a mana ability.