Mnemonic Betrayal

Mnemonic Betrayal


Exile all cards from all opponents' graveyards. You may cast those cards this turn, and you may spend mana as though it were mana of any type to cast those spells. At the beginning of the next end step, if any of those cards remain exiled, return them to their owners' graveyards.

Exile Mnemonic Betrayal.

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Printings View all

Set Rarity
Guilds of Ravnica (GRN) Mythic Rare

Combos Browse all


Format Legality
Block Constructed Legal
Historic Legal
1v1 Commander Legal
Pioneer Legal
Modern Legal
Oathbreaker Legal
Duel Commander Legal
Arena Legal
Standard Legal
Casual Legal
Pre-release Legal
Unformat Legal
Vintage Legal
Leviathan Legal
Commander / EDH Legal
Brawl Legal
Canadian Highlander Legal
Highlander Legal
Magic Duels Legal
Legacy Legal
Tiny Leaders Legal

Mnemonic Betrayal occurrence in decks from the last year

Commander / EDH:

All decks: 0.01%

Mnemonic Betrayal Discussion

Grind on Surveillance

1 month ago

cool deck!
have you considered Mnemonic Betrayal? i think this card is great value.
also the name of your deck would make me want to run Telepathy even though it is not as good as gitaxian probe.
and Retreat to Coralhelm is another way to see your topdeck after your draw step.
cheers and keep having fun!

Optimator on Mermaider

2 months ago

Mnemonic Betrayal might be a fun wincon

Farycane on Niv Mizzet, Reborn Master of Theros Gods

2 months ago

Thief of Sanity Sounds quite good. I Wish it would say "Play" rather than "Cast" but might be worth a shot.

Mnemonic Betrayal gets you ramp If you have some Mana available. Since Niv never hits lands it's quite important to get your Lands/Ramp somehow. But yeah sometimes it's just not worth casting.

Jodah and Fist aren't for this Deck, as you mentioned, not 2 colored.

Jegantha works well for fixing for Niv, If you have 5 Lands but not 5 colors, jegantha comes in Handy

EldraziOfRavnica on Niv Mizzet, Reborn Master of Theros Gods

2 months ago

Mnemonic Betrayal is almost always dissapointing for me. Fist of Suns and Jodah, Archmage Eternal are good with Jegantha, but not grabbable with Niv, so they might not be worth it. The deck might want Thief of Sanity because it takes Betrayal's slot and does something similar. It does die to removal, so it might not be the best.

12_dwarfs on Here, Let Me Cast That

2 months ago

This is all a want to see in a dimir deck, this deck is truly amazing, I think Mnemonic Betrayal would be good other than that amazing deck

Grind on To the Graveyard and Back Again

2 months ago

Sweet deck!!
A couple thoughts... Mnemonic Betrayal can be amazing if you have enough mana.
Speaking of mana i would consider another rock like Worn Powerstone or Thran Dynamo over, for example, profane memento as idk if incidental lifegain is as valuable as more mana.
Another thought is a card like Mission Briefing or Twincast could let you get double value out of one of your mvp mill spells like mind funeral or traumatize.
Anyway just some ideas, cheers and keep having fun!!

Grind on Wrexial Mill and Kill

2 months ago

Cool deck!!
Consider Mnemonic Betrayal to get extra value from those cards you mill.
Also maybe Twincast to double one of your mill spells for only 2 mana.

Epicurus on Niv's Misfits

5 months ago

Also update - just replaced Jhessian Zombies with Mnemonic Betrayal. Which brings up a point that may be useful in your own attempt at the deck design. It's not often "take this card out for something else that does the same thing better," because you have to keep track of color pairs. Like, there's a ton of spells I'd like to include in Izzet and Gruul, but can't because I want to keep it even. Not to mention mana rocks and mana dorks, which are colorless or monocolor. I'm also likely limiting myself by running a lot of cascade (one of the effects of which is that I shy away from spells like Aurelia's Fury, because of the X cost).

Good luck in your own deck. If you finish a draft of it and post it on this website, post a link to it here so I can check it out!

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