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Mercurial Transformation

{1}{U}

Sorcery — Lesson

STXStrixhaven: School of Mages#47uncommon

EDHREC #17,532

"For sun's sake, I just want a crab!"

Finishes
Nonfoil · Foil
Border
black
Frame
2015
Illustrator
Craig J Spearing
CommanderLegalModernLegalStandardNot legal
Format legality

Constructed

StandardNot legal
PioneerLegal
ModernLegal
LegacyLegal
VintageLegal
PauperNot legal

Commander

CommanderLegal
Pauper CommanderNot legal
Duel CommanderLegal
PreDHNot legal
OathbreakerLegal
Tiny LeadersLegal

Arena

AlchemyNot legal
HistoricLegal
TimelessLegal
BrawlLegal
Standard BrawlNot legal
Competitive BrawlLegal
GladiatorLegal

Other

PremodernNot legal
Old SchoolNot legal
Penny DreadfulNot legal
Future StandardNot legal
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.
Market · per finishtrend updated 6h ago · prices as of Oct 15, 2026
Nonfoil$0.32+14.3%
$0.01 low$0.00 gap
Foil$0.28+7.7%
$0.04 low-$0.04 gap
Cheapest playable copy$0.28· across 1 printing· you're viewing it

Price history

last 30 days · set by the window above · each finish on its own scale
Nonfoil$0.32+14.3%30D
30D range$0.28to$0.33Since Feb 2024:H $0.33L $0.02
Foil$0.28+7.7%30D0.88× nonfoil
30D range$0.25to$0.28Since Feb 2024:H $0.28L $0.07

Other printings

1 totalCompare all printings

Found in

10 productsRounded odds

  • Strixhaven School of Mages MTGO Redemption Foil

    Box Set · —

    Nonfoil —Foil 1+ copies

  • Strixhaven School of Mages MTGO Redemption

    Box Set · —

    Nonfoil 1+ copiesFoil —

  • Strixhaven School of Mages Theme Booster Pack Quandrix

    Booster Pack · $9.84

    Nonfoil under 50%Foil —

  • Strixhaven School of Mages Theme Booster Pack Prismari

    Booster Pack · $11.47

    Nonfoil under 50%Foil —

  • Strixhaven School of Mages Prerelease Pack Quandrix

    Limited Aid Tool · $44.27

    Nonfoil under 25%Foil —

  • Strixhaven School of Mages Prerelease Pack Prismari

    Limited Aid Tool · $48.00

    Nonfoil under 25%Foil —

  • Strixhaven School of Mages Set Booster Pack

    Booster Pack · $9.60

    Nonfoil under 10%Foil —

  • Strixhaven School of Mages Draft Booster Pack

    Booster Pack · $7.03

    Nonfoil under 10%Foil under 1%

  • Strixhaven School of Mages Collector Booster Pack

    Booster Pack · $63.05

    Nonfoil —Foil under 10%

  • Strixhaven School of Mages Collector Booster Hanger Pack

    Booster Pack · $54.99

    Nonfoil —Foil under 10%

Rulings

3 · latest Apr 16, 2021
  • WotCApr 16, 2021

    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.

  • WotCApr 16, 2021

    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.

  • WotCApr 16, 2021

    You choose Frog or Octopus as Mercurial Transformation resolves, not when you cast it.

Open in:ScryfallTCGplayer(affiliate)EDHREC