변덕스러운 변신 
Mercurial Transformation
집중마법 — 수업
Printed (KO)
집중마법 — 수업
대지가 아닌 지속물을 목표로 정한다. 턴종료까지, 그 지속물은 모든 능력을 잃고 당신의 선택에 따라 기본 공격력 및 방어력이 1/1인 청색 개구리 생물 또는 기본 공격력 및 방어력이 4/4인 청색 문어 생물이 된다.
Oracle text (EN)
Sorcery — Lesson
Until end of turn, target nonland permanent loses all abilities and becomes your choice of a blue Frog creature with base power and toughness 1/1 or a blue Octopus creature with base power and toughness 4/4.
Printing details
- Set
- STX · 47
- Rarity
- Uncommon
- Language
- KO
- Artist
- Craig J Spearing
- Released
- 2021-04-23
- Prices
- – · –
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend |
|---|---|
| November 2, 2026 | €0.10 |
| October 28, 2026 | €0.08 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low €0.02 trend €0.10 30-day avg €0.08 | low €0.03 trend €0.15 30-day avg €0.17 |
| CardTrader (KO) | No offers | |
| CardTrader (any language) | NM from €0.11 | NM from €0.13 |
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
-
Although you may want to include Lessons in your sideboard if you’re playing with cards that instruct you to learn, Lesson cards can be included in your main deck like other instant or sorcery cards.
-
Lesson is a spell subtype found on some instant and sorcery cards in the Strixhaven set. The Lesson subtype has no special rules associated with it.
-
You choose Frog or Octopus as Mercurial Transformation resolves, not when you cast it.