巨岩投下
ソーサリー
怒濤
（あなたかチームメイトがこのターンに他の呪文を唱えていたなら、あなたはこの呪文を怒濤コストで唱えてもよい。）
クリーチャー１体を対象とする。巨岩投下はそれに４点のダメージを与える。
「空が落ちてくると言う奴がいたら、話を聞くよ。」 ――オラン＝リーフの生き残り、ヨン・バスレル
Illustrated by
Oath of the Gatewatch#102CommonJapaneseLegality
Rulings
For some cards, surge represents only an alternative cost, a discount that applies if you or a teammate has cast another spell this turn. Other cards, like Reckless Bushwhacker, have additional abilities or effects if you paid the surge cost to cast the spell.
The other spell that you or a teammate cast can be one that’s resolved, one that was countered, or (for instants with surge) one that’s still on the stack.
If an instant or sorcery spell cast for its surge cost is copied, the copy is also considered to have had its surge cost paid.
Casting a spell for its surge cost doesn’t change its mana cost or its converted mana cost.