Mercurial Transformation
~$0.28 low · ~$0.32 high
Blue. Sorcery — Lesson
Strixhaven: School of Mages #47 · Illustrated by Craig J Spearing
Strixhaven: School of Mages #47 · Illustrated by Craig J SpearingWhat is Mercurial Transformation worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
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.
"For sun's sake, I just want a crab!"
Format legality
The only printing of Mercurial Transformation
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
 Strixhaven: School of Mages stx #47· 2021uncommon· Cardmarket €0.08 · €0.15 foil | uncommon | $0.32 | $0.28 | €0.08€0.15 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Mercurial Transformation
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Card details
- First printed
- 2021
- Printings
- 1
- Mana value
- 2
- EDHREC rank
- #17,537 on EDHREC (Commander popularity)
- Artist
- Craig J Spearing
What the codes mean
The small print at the bottom of the Strixhaven: School of Mages card (#47).
047 · STX · U · EN
- 047Collector number: this card's place in the set list. Main-set cards print it over the set's card count.
- STXSet code for Strixhaven: School of Mages
- UUncommon
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (3)
2021-04-16
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.
2021-04-16
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.
2021-04-16
You choose Frog or Octopus as Mercurial Transformation resolves, not when you cast it.
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