Act of Treason


Format Legality
Pre-release Legal
Tiny Leaders Legal
Frontier Legal
Vintage Legal
Penny Dreadful Legal
Commander / EDH Legal
Noble Legal
Magic Duels Legal
Brawl Legal
Standard Legal
1v1 Commander Legal
Canadian Highlander Legal
Vanguard Legal
Leviathan Legal
Planechase Legal
Duel Commander Legal
Unformat Legal
Modern Legal
Pauper Legal
Pauper EDH Legal
Legacy Legal
Archenemy Legal
Casual Legal

Printings View all

Set Rarity
Core Set 2019 (M19) Common
Masters 25 (A25) Common
Magic Origins (ORI) Common
Khans of Tarkir (KTK) Common
Duel Decks: Speed vs. Cunning (DDN) Common
Magic 2014 (M14) Common
Gatecrash (GTC) Common
2012 Core Set (M12) Common
2011 Core Set (M11) Common
Duels of the Planeswalkers (DPA) Common
2010 Core Set (M10) Uncommon

Combos Browse all

Act of Treason


Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)

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Recent Decks

Act of Treason Discussion

multimedia on Sarkhan’s Dragons

2 days ago

Hey, nice budget post rotation Dragon deck.

Consider Verix Bladewing? It's a mono red four drop Dragon. Consider Skirk Prospector? One drop Goblin it can be early game play to support Dragons or potentially turn two Sarkhan. Prospector can sac itself to make one red mana for ramp to play a Dragon or Sarkhan faster. Later on when you don't need it, it can be fodder to discard to Sarkhan's loot ability.

Consider this creature base:

  • 4x Prospector
  • 3x Egg
  • 3x Verix
  • 4x Demanding
  • 3x Queen

Consider this other spells base:

  • 4x Sarkhan
  • 4x Hoard

  • 3x Shock
  • 4x Strike
  • 3x Spit

  • 23x Mountains

Helm, Rift and Sparktongue can be sideboard cards, but you honestly don't really need any of them. Some good budget sideboard cards for red: Fight with Fire (kill bigger creatures, other fliers), Banefire (for control matchups, kill a Planeswalker), Fiery Cannonade (wreck tokens or weenie aggro), Act of Treason (steal your opponent's big creature or flier and attack with it), Smelt (instant artifact removal), Vance's Blasting Cannons  Flip (more repeatable draw for midrange and control matchups).

Consider this sideboard:

  • 3x Fire
  • 2x Banefire
  • 3x Cannonade
  • 2x Smelt
  • 2x Cannons
  • 1x Act

  • 2x empty spots

Dorotheus on New Mechanic: Indomitable

2 weeks ago

I'm always for overcosted hate cards. They are perfectly acceptable to me. I don't think Wotc would be on for the keyword, but a hate card like this is perfectly within reason, and yea I can't see it being anything other than Red and White of some kind.
Maybe it could be "Defy Defiance" where Marchesa tells her subjects to leave and save themselves but they stay anyway (if she's even alive right now, I haven't followed the story too closely), and be in the 3rd Conspiracy set, but it's likely only be creatures so like maybe cost 3RW, or RRWW.

Otherwise for Indomitable to be award a keyword, there'd have to be a HEAVY theme of cards like Enslave, Act of Treason, Vedalken Shackles and maybe even like Pacifism effect also don't work.

But if we're forcing it: Indomitable (This creature has protection from auras opponents control and can't be under another player's control except for it's team).


DemonDragonJ on New Mechanic: Indomitable

2 weeks ago

There are many cards in this game that allow a player to take control of another player's permanents, but, amazingly, there are no cards that prevent such an effect from occurring, so I shall now remedy that. If Tajuru Preserver and Sigarda, Host of Herons can completely stop forced sacrifices, there is no reason that there cannot be cards that completely stop players from taking control of another player's permanents.

Indomitable (this permanent cannot be controlled by any player other than its owner).

The indomitable mechanic prevents a permanent that has it from being controlled by any player other than its owner; temporary effects, such as Act of Treason or Dominus of Fealty's ability, may target the permanent, as normal, but simply fail. Auras that steal permanents, such as Mind Control, may attach to such a permanent, but have no effect.

Of course, I shall now also create an example of a card that has this ability, as seen, below:

Undying Loyalty Show

I chose red and white for this card, because those colors are the colors that are most often associated with loyalty and bonds.

What does everyone else say about this subject? Why is there no way to prevent players from stealing each other's permanents, and is my idea a good one?

DrkNinja on Music of the Spheres

3 weeks ago

So first things first, this deck is all about value. The cards you use for this deck should bring a ton of value as you are cheating them out for next to nothing. For instance, what value does Bringer of the Red Dawn bring really if you could just play Act of Treason for it's same ability? Who cares about the body it has, but when you play a card in Jodah is should warp the entire game.

As far as your landfall sub theme... I think you should cut it altogether. A real landfall deck requires a LOT of specific cards, most of which you DO NOT have in the deck. Cards like Roil Elemental are good on their own with you just playing one land a turn. Omnath and Ob Nixilis are cards you have to commit to for them to truly shine.

With that in mind the following cards I think are too weak for this deck, and should be cut:

  • Bringer of the Red Dawn
  • Ashen Rider: Ulamog, the Ceaseless Hunger is just strictly better.
  • Empyrial Archangel: this is more of a personal card, as for this card to be effective you'd need to have Avacyn out as well.
  • Frost Titan: Just not enough value.
  • Kokusho: Requires someone to Kill it, and doesn't immediately have an effect. Plus it's gonna be a real "feels bad" moment when they Path/Swords/Unmake it and no trigger
  • Mindleech Mass: It requires you to do combat damage before it does anything which means theres a whole turn for anyone in your pod to deal with it.
  • Ramunap Excavator
  • Omnath
  • Ob Nixilis
  • Reya Dawnbringer: It is a fact that enchantments and artifacts are harder to kill than creatures, it is with that in mind I would say just play Debtors' Knell over Reya.
  • Urabrask the Hidden: It's good, but it A) Makes you a huge target because you are messing with people's boards and B) just isn't as good as Authority of the Consuls
  • Garruk Wildspeaker: In any ordinary deck this would be fine but since he doesn't do much I'd suggest his bigger, meaner form Garruk, Apex Predator
  • Khalni Gem: This is expensive, and it sets you back more than it helps you. The idea with mana rocks is to get you ahead with lands, try Coalition Relic
  • Treacherous Terrain: This card is only good against decks that ramp, or in the late game, in which case you'd rather see something else like a Time Stretch.

Cards I would suggest for this deck:

If you think my advice was helpful or if you want to check out my version of the deck, upvote and check it out here.

Jodah's Fire Sale!

Commander / EDH* DrkNinja


Funkydiscogod on Steal and Sacrifice

3 weeks ago

I have tried decks like this before, and the biggest problem I think, is that you need cards that don't require mana to sacrifice, or else it risks being too slow.

What I mean is: if you can cast Act of Treason, and activate Altar's Reap in the same turn, then you basically just made your own Slave of Bolas.

DaWubber on Vaevictis Lands Matter/Upgrading

1 month ago

Also, consider adding Act of Treason style cards so you can steal opponents permanents or creatures to sacrifice instead of your own. Captivating Crew has this effect, is repeatable, and is tied to a permanent that can be flipped with Vaevictis. Also agree with the choice to replace certain instants and Sorceries with permanents with similar effects. It'sa real feel bad moment when you miss a flip with Vaevictis.

Borka_Grim on Sarkham/Chandra PW Deck's Merge - Mono-Red Dragons

1 month ago

Awesome, thanks again.

The Sarkhan Deck comes with 4 x Kargan Dragonrider's, so it's easy enough to swap 2 more in for the 2 Viashino Pyromancer's.

Alternatively the instances/sorcery's I've not currently used from either PW deck that I could switch in instead are:

Or maybe the Gilded Lotus single that comes with the Chandra deck?

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