ソーサリー
犠牲1(あなたがこの呪文を唱えるに際し、あなたはパワーが1以上であるクリーチャー1体を生け贄に捧げてもよい。そうしたとき、この呪文をコピーし、あなたはそのコピーの新しい対象を選んでもよい。)
クリーチャーやプレインズウォーカーのうち1体を対象とする。それがこのターンに戦闘ダメージでないダメージを受けていたなら、忌まわしい印章はそれに3点のダメージを与え、あなたは3点のライフを得る。そうでないなら、忌まわしい印章はそれに1点のダメージを与え、あなたは1点のライフを得る。
If you cast Grisly Sigil targeting a creature or planeswalker that hasn't been dealt noncombat damage this turn, choose to pay its casualty cost, and choose not to change the target, the copy will deal 1 damage and you will gain 1 life. Then, the original spell will resolve. It will deal 3 damage, and you will gain 3 life.
Casualty N means “As an additional cost to cast this spell, you may sacrifice a creature with power N or greater.” and “When you cast this spell, if a casualty cost was paid for it, copy it. If the spell has any targets, you may choose new targets for the copy.”
The copy of the spell is created on the stack, so it's not “cast.” Abilities that trigger when a player casts a spell won't trigger.
If you pay the casualty cost of a spell, the copy will resolve before the original spell.
You may sacrifice only one creature to pay a spell's casualty cost, and you copy the spell only once.