月の後裔、ナシ

威迫、護法{1}
月の後裔、ナシが攻撃するたび、あなたの墓地にありネズミや伝説であるカードのうち最大１枚を対象とする。それを追放し、コピーする。あなたはそのコピーを唱えてもよい。

月智传承哪失

威慑，守护{1}
每当月智传承哪失攻击时，将至多一张目标传奇或老鼠牌从你的坟墓场放逐并将它复制。你可以施放该复制品。

Nashi, Moon's Legacy

Menace, ward {1}
Whenever Nashi, Moon's Legacy attacks, exile up to one target legendary or Rat card from your graveyard and copy it. You may cast the copy. (You still pay its costs. A copy of a permanent spell becomes a token.)

March of the Machine: The Aftermath

Menace, ward {1}
Whenever Nashi, Moon's Legacy attacks, exile up to one target legendary or Rat card from your graveyard and copy it. You may cast the copy.

Because you're paying the spell's costs, if the spell has {X} in its mana cost, you may choose its value as normal.

If you don't want to cast the copy, you can choose not to; the copy ceases to exist the next time state-based actions are performed.

You cast the copy while the ability is resolving and still on the stack. You can't wait to cast it later in the turn.