落とし穴の罠

ちょうど１体のクリーチャーが攻撃しているなら、あなたは落とし穴の罠のマナ・コストを支払うのではなく、{W}を支払ってもよい。
飛行を持たない攻撃クリーチャー１体を対象とし、それを破壊する。

每根刺都涂了毒～这是设陷人所谓的慈悲。

坠穴陷阱

如果正好一个生物进行攻击，你可以支付{W}，而不支付坠穴陷阱的法术力费用。
消灭目标进行攻击且不具飞行异能的生物。

Pitfall Trap

If exactly one creature is attacking, you may pay {W} rather than pay this spell's mana cost.
Destroy target attacking creature without flying.

The List

Modern Masters 2017

If exactly one creature is attacking, you may pay {W} rather than pay Pitfall Trap's mana cost.
Destroy target attacking creature without flying.

Zendikar

Casting a Trap by paying its alternative cost doesn't change its mana cost or mana value. The only difference is the cost you actually pay.

Effects that increase or reduce the cost to cast a Trap will apply to whichever cost you chose to pay.

You may ignore a Trap's alternative cost condition and simply cast it for its normal mana cost. This is true even if its alternative cost condition has been met.