ゼロ除算 {2}{U}

インスタント

マナ総量が１以上の、呪文１つかパーマネント１つを対象とする。それをオーナーの手札に戻す。

履修を行う。（あなたは、ゲームの外部からあなたがオーナーである講義・カード１枚を公開しあなたの手札に加えるか、カード１枚を捨てカード１枚を引くか、どちらかを行ってもよい。）

「悲惨。不適切。失敗。その共通項はお前だ。」

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Strixhaven: School of Mages #41

Only the English version of a Magic card receives Oracle updates and errata. View this card in English. (Scryfall note)
If an effect returns a copy of a spell to its owner’s hand, the copy ceases to exist. (2021-04-16)
If a card is brought into the game from outside the game, it will stay in the game until it ends or until its owner leaves the game, whichever comes first. (2021-04-16)
If you bring a card into the game from outside the game in a Constructed tournament (or a Constructed game played under tournament conditions), you may select only a card from your sideboard. In casual Constructed games, the card comes from your collection. (2021-04-16)

If you bring a card into the game from outside the game in a Sealed Deck or Booster Draft event, you may select only a card that is in the card pool that you built your deck from. (2021-04-16)
If instructed to learn, you may do nothing. Discarding a card and putting a Lesson card into your hand are both optional. (2021-04-16)