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Mnemonic Betrayal

{1}{U}{B}

Sorcery

GRNGuilds of Ravnica#189mythic
Finishes
Nonfoil · Foil
Border
black
Security stamp
oval
Frame
2015
Pull rate
about 1 per booster–1 in 3585
Illustrator
Clint Cearley
Found in
Guilds of Ravnica MTGO Redemption Foil · Guilds of Ravnica MTGO Redemption · 2 more
Printings1Combos1EDHREC rank#2,405
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 DreadfulLegal
Future StandardNot legal
Exile all opponents' graveyards. You may cast spells from among those cards this turn, and mana of any type can be spent to cast them. At the beginning of the next end step, if any of those cards remain exiled, return them to their owners' graveyards. Exile Mnemonic Betrayal.
Market · per finishspark updated 24h ago · prices as of 2026-08-29
Nonfoil-5.8%
$7.96
$6.56 low$2.26 gapTCGplayer
Foil+1.4%
$88.82
$77.94 low$21.94 gapTCGplayer
Cheapest playable copy$7.96· across 1 printing· you're viewing it

Rulings

5 · latest Oct 5, 2018
  • WotCOct 5, 2018

    If you cast a spell this way and that card is exiled, it’s considered a new object. Mnemonic Betrayal no longer allows you to cast it. It remains in exile when Mnemonic Betrayal’s delayed triggered ability resolves.

  • WotCOct 5, 2018

    In a multiplayer game, if a player leaves the game, all cards that player owns leave as well. If you leave the game, any spells or permanents you control from Mnemonic Betrayal’s effect are exiled. If you leave the game before Mnemonic Betrayal’s delayed triggered ability resolves, the cards remain exiled.

  • WotCOct 5, 2018

    Mnemonic Betrayal doesn’t change when you can cast the exiled cards. For example, if you exile a sorcery card, you can cast it only during your main phase when the stack is empty.

  • WotCOct 5, 2018

    Only the cards that remain in exile are returned to their owners’ graveyards. For example, a permanent spell cast this way will remain on the battlefield.

  • WotCOct 5, 2018

    You can’t play land cards exiled this way.