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Mass Polymorph

{5}{U}

Sorcery

Exile all creatures you control, then reveal cards from the top of your library until you reveal that many creature cards. Put all creature cards revealed this way onto the battlefield, then shuffle the rest of the revealed cards into your library.
CommanderLegalModernLegalStandardNot legal
Format legality

Constructed

StandardNot legal
PioneerNot legal
ModernLegal
LegacyLegal
VintageLegal
PauperNot legal

Commander

CommanderLegal
Pauper CommanderNot legal
Duel CommanderLegal
PreDHLegal
OathbreakerLegal
Tiny LeadersNot legal

Arena

AlchemyNot legal
HistoricNot legal
TimelessNot legal
BrawlNot legal
Standard BrawlNot legal
Competitive BrawlNot legal
GladiatorNot legal

Other

PremodernNot legal
Old SchoolNot legal
Penny DreadfulLegal
Future StandardNot legal

EDHREC #10,821Played in Under 1% of cEDH decks with blue

Printings
3
Price range
$0.22to$0.86

Versions

3 printings · from $0.22

In products
Reality Fracture Commander
2026#42CheapestIn products
The List
2023#M11-64In products

Rulings

4 · latest Aug 15, 2010
  • WotCAug 15, 2010

    All creatures you put onto the battlefield with Mass Polymorph enter at the same time.

  • WotCAug 15, 2010

    Any abilities that trigger during the resolution of Mass Polymorph (such as a creature's "enters" ability) will wait to be put onto the stack until Mass Polymorph finishes resolving. The player whose turn it is will put all of their triggered abilities on the stack in any order, then each other player in turn order will do the same. (The last ability put on the stack will be the first one that resolves.)

  • WotCAug 15, 2010

    If the number of creatures you exile is greater than the number of creature cards remaining in your library, you'll wind up revealing your entire library, putting all creature cards revealed that way onto the battlefield, then shuffling your library.

  • WotCAug 15, 2010

    The creatures you exile with Mass Polymorph remain exiled for the rest of the game.