比較分析
インスタント
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。）
プレイヤー１人を対象とする。そのプレイヤーはカードを２枚引く。
「残された時間はあとわずか。エルドラージに勝つためには、面晶体の秘密を解き明かすしかない。」 ――ジェイス・ベレレン
イラスト：
Oath of the Gatewatch#51コモン日本語適正
裁定
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.