ゼロ除算 
Divide by Zero
インスタント
Printed (JA)
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。）
Oracle text (EN)
Instant
Return target spell or permanent with mana value 1 or greater to its owner's hand. Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)
Printing details
- Set
- STX · 41
- Rarity
- Uncommon
- Language
- JA
- Artist
- Liiga Smilshkalne
- Released
- 2021-04-23
- Prices
- – · –
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (JA)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (JA) |
|---|---|---|
| November 2, 2026 | €0.27 | €0.11 |
| November 1, 2026 | €0.28 | €0.11 |
| October 30, 2026 | €0.26 | €0.11 |
| October 29, 2026 | €0.23 | €0.11 |
| October 28, 2026 | €0.25 | €0.11 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €0.27 30-day avg €0.23 | low – trend €0.42 30-day avg €0.52 |
| CardTrader (JA) | NM from €0.11 with Zero from €0.18 | NM from €0.14 with Zero from €0.60 |
| CardTrader (any language) | NM from €0.11 | NM from €0.14 |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Not legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Legal
- tlr Legal
Rulings
-
If an effect returns a copy of a spell to its owner’s hand, the copy ceases to exist.
-
If instructed to learn, you may do nothing. Discarding a card and putting a Lesson card into your hand are both optional.
-
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.
-
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.
-
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.