Mercurial Transformation
Click the card to switch sides
Magic: The Gathering
Mana cost
Strixhaven: School of MagesSTX · #47
- Card type
- Sorcery — Lesson
- Rarity
- Uncommon
- Indicative price
- 0.08 € · ★ 0.15 € · 0.32 $ · ★ 0.27 $
- Mana value
- 2
- Colour
- Blue
Card 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.
Format legality
- BrawlLegal
- CommanderLegal
- CompetitivebrawlLegal
- DuelLegal
- GladiatorLegal
- HistoricLegal
- LegacyLegal
- ModernLegal
- OathbreakerLegal
- PioneerLegal
- TimelessLegal
- VintageLegal
Legalities follow the imported catalogue; check format rules before a tournament.
Data imported on 2026-10-06 (UTC).
Indicative Scryfall prices, updated daily. ★: foil; ★ E: etched foil. EUR and USD represent different markets.
Printing information
- Illustrator
- Craig J Spearing
- Card language
- English
- Release date
- 2021-04-23
Flavour text
"For sun's sake, I just want a crab!"
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.