Act of Treason


Format Legality
Modern Legal
Legacy Legal
Vintage Legal
Commander / EDH Legal
Duel Commander Legal
Tiny Leaders Legal
Standard Legal
Pauper Legal

Printings View all

Set Rarity
Magic Origins Common
Khans of Tarkir Common
Duel Decks: Speed vs. Cunning Common
Magic 2014 Common
Gatecrash Common
2012 Core Set Common
2011 Core Set Common
Duels of the Planeswalkers Common
2010 Core Set 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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Cardhoarder (MTGO)

0.01 TIX $0.02 Foil


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Act of Treason Discussion

TheProxyCentral on Marchesa 1.0.1

1 week ago

First of all thank you very much for your extensive help mate!

I don't have an actual budget for this deck, I intend to make it my most powerful deck, in time, so I am willing to invest in something that is going to be absolutely broken, but I am not going so far as to get all the fetches and original duals :) I always look for a balance between value and strength and being commander a fun format I'm not too keen in running many cards over 20$ unless there is really no other option for that effect. This being said, of course that my main list is made of cards I currently own, being most of my percieved improvements so far in the maybeboard for budget reasons only.

I'll start from the bottom:

  • Vampire Nighthawk is my Wurmcoil Engine right now. In the few multiplayer tests I've made, I've succeded to lower my life total enough to make dethrone work, but if there is someone succeding in an attrition game or if I'm facing a Lifegain deck (and there are both Oloro, Ageless Ascetic and Karlov of the Ghost Council on my playgroup) I tend to need a little bit of residual lifegain to keep myself alive long enough to secure the win. Taurean Mauler is a huge beacon, since it gets big real fast and everyone turns to it while I build my board further, for the same reason Hellhole Flailer gets some sneaky damage in - it's not broken, but I like clunky cards sometimes :) Of all those the one I like the most is Mausoleum Wanderer, don't mind the spirit part of the text - With so many ways to put counters on it, it works much like Glen Elendra Archmage most of the time, reason why I'm a bit low on countermagic, since I can recurr both of these.

  • I didn't know Aura Thief but it looks brilliant! I'm already trying to find the Chaos Warp in my LGS, it's one of the big priorities ;)

  • Shriekmaw or Nekrataal have the advantage of targeting, when compared with Fleshbag Marauder + Merciless Executioner , I can't really get rid of something like a Blightsteel Colossus (not that I find myself on the wrongside of one of those often, but there are other annoying targets that I just need to get rid of sometimes) for instance. Mulldrifter is part of my draw plan, but with cards like Greed (or Necropotence) for that matter might prove redundant.

  • As for tutors, as I said, budget is not the issue once I find that the card is going to be brilliant. In the meantime, while I don't trim what's in excess and crunch the numbers a bit better, there's not much of a point on investing in something like a Mystical Tutor for instance, since I might end up with not many significant targets for it. For now I'm running the budget-est version of it in Diabolic Tutor to see how it goes, and will probably upgrade it in time.

  • For counterspells, as I previously wrote, I heavily rely on Glen Elendra Archmage and Mausoleum Wanderer since I can recurr them and lock the game most of the times (at least in my playgroup). I am not investing in a Force of Will and maybe not even in Pact of Negation for the reasons I went on before, I just don't enjoy playing cards of that power level and price in commander and therefore there is no point on spending money on those. I like to brew and I could probably make 2 decks with the money I'd spend in a FoW, I get much more fun doing that than winning all the games with no question. Swan Song and Arcane Denial were on my original list though since I thought I owned copies of those when I bought the remaining cards, and turned out I didn't! :D

  • I don't know why Willbreaker isn't there. It was in the original list even before Beguiler of Wills and Thalakos Deceiver and it is pretty good too, I just got out of it at first because of its higher CMC.

  • Slave of Bolas comes with the sac outlet itself. I've been on the wrong end of one of those and it is worth every mana spent. It allows you to attack with the creature, use it with dethrone, and you get the creature you stole permanently since it will have a counter and will come back in EoT. Act of Treason doesn't seem very relevant and Grab the Reins doesn't allow me to attack for dethrone before I sac their creature. Reins of Power will lose me Marchesa for the turn and therefore is not very useful in this matter as well. The tokens are just meant to gain board presence and chump whenever I need it. Grave Titan takes over games, Chasm Skulker and Reef Worm provide incremental advantage on board while they are huge targets for exile effects, keeping other more important pieces on board or at least in the graveyard where I can get them back still.

  • As for the mana rocks, that's a good point! :) I'm not much into Magic Christmas Wonderland scenarios (neither they seem to like me! lol) but I'll probably adjust that to maximize the chance!

  • Controlling the life total hasn't been an issue except when playing against something like Ezuri, Claw of Progress that can one shot me most of the time. Whenever I don't have a way to lose life myself I just don't block most attacks. And if no one attacks I'm gaining board presence anyway. This being said Lim-Dul's Vault doesn't seem to impactful and Toxic Deluge is too expensive (moneywise) for the advantage it grants when compared to other board wipes. Treasonous Ogre is one inclusion to consider since it is also a way to get around one or two mana lacking for some big plays and allows for that additional control.

  • Necropotence... Well :D There's no question to its power, but I've never played with it, and it needs a bit of getting used to it. I'll probably proxy it up and try it out to see if it's worth the investment or if I manage to suck with a card this powerful. (I used to run Deathreap Ritual in my Meren deck and took it out simply because I never remembered its triggers... Played tenths to hundreds of games with that card and I only remembered it on my own turns. It was not a question of power, it was just not a card I "knew" how to play with and that didn't even took much skill lol)

  • Gray Merchant of Asphodel is a beating even in this deck, most of the times it drains for more than 5, but even so, Kokusho, the Evening Star is more reliable most of the time and besides, it's a flyer that can end a game right away as well. At this point I don't own any, so I started with the budget version that gets a similar job done as well.

  • Grim Haruspex, absolutely no question, you're right! I don't even know how I didn't think of that earlier, but that's a change I'm doing as I write down this comment! :)

As for next investments (being cards I will include and still don't own), Chaos Warp, Treasonous Ogre and Fellwar Stone or Coldsteel Heart are definitely on the way in, from my maybeboard I'm seriously considering Mikaeus, the Unhallowed and Wurmcoil Engine as the next big money cards and with the latter, probably I'll try and make way for a Saheeli Rai.

I'll update the list as I make the changes in the deck ;)

Once again, thank you very much for your help!! I'll check your deck right away too! ;)

AlexRuzhyo on Marchesa 1.0.1

1 week ago

Hey there! I recently put together a Marchesa deck of my own (link). There's a small primer in the description if you want to compare tech. Do note that I've only recently got to playtest it a bit, but I'd say it wants to lower its curve just a little bit. It relies a bit too much on high CMC combos and often falls behind and get shut down by my more competitive decks.

Hey, what's your budget? Are the cards on your mainboard what you own or what you hope to own? Just curious.

Anyways, I'd look at each card you're running and asses it's impact on your board, how synergistic it is with Marchesa, or if there's a "strictly better" version of it. For instance...

That's it off the top of my head. I know there's a fine line between recommending cards and killing the spirit of a deck. That said, I don't think Vampire Nighthawk, Taurean Mauler, Mausoleum Wanderer, Hellhole Flailer, Flame-Wreathed Phoenix, or Expropriate add too much to the deck.

frogkill45 on B/R Burn.. BR? Bedlam Reveler...Oh

1 week ago

Thanks for the upvote. Unfortunately Traitorous Instinct is not in standard and Act of Treason is rotating soon. hijack will be available though. i tried not to include origins and dtk when building this deck. I really haven't looked at Kaladesh Spoilers to much. I did see the Chandra, Torch of Defiance so looking forward to her.

Nosoup4ne1 on B/R Burn.. BR? Bedlam Reveler...Oh

1 week ago

I love this idea! Way to be a little more original than the standard Izzet burn build. Maybe Act of Treason or Traitorous Instinct would have a place here. If you can't kill the creature at least use it or force them to block against it and maybe get rid of two of their creatures at once. Act of Treason fits your mama curve better, but the +2/+0 may be worth the extra mana. Maybe worth a spot in you sideboard.

Hail_Hydra on Control Life and Death

1 week ago

It's not impossible. Yes, there are some high costing cards, but the point of this deck is to take control of creatures your opponent controls and then sacrificing them so that way your opponent no longer has an offense. With numerous amounts of very cheap spells such as Dreadbore, Undercity Informer, and Act of Treason, you bide yourself time to play the higher costing cards with ease.

Epicfuzz45 on i pulled him foil soooo

2 weeks ago

Carnophage seems mediocre since he doesn't do anything same w/ Diregraf Ghoul. Firedrinker Satyr can really back fire on you and is too mana intensive in a deck that already has a mana intensive ability on the commander. Rakdos Cackler is another low drop that doesn't do much in commander. You don't have enough cards to trigger heroic on Tormented Hero for it to be worth it to have him in the deck. Vampire Lacerator does nothing. Spike Jester does nothing. Sarcomancy seems mediocre, actually probably just hurts you more than anything. I think you shoul add more Act of Treason cards to the deck as a cheeky way to deal w/ your opponents creatures. This is commander, where is Sol Ring? I know Tymaret doesn't have any colorless mana in his cmc, but you still need to run it, probably Rakdos Signet too, this deck needs as much mana as it can get.

Psychosocial on American Superfriends --KALADESH UPDATES--

2 weeks ago

I see you've already added some cards from the new set, just a friendly fyi.. when those cards are legal Fiery Impulse, Hydrolash, and Act of Treason will not be standard legal.

Just something to keep in mind going forward here.

abenz419 on What are the best act ...

2 weeks ago

I have a Marchesa, the Black Rose edh deck that I've been making a lot of changes to lately. It already had a small steal your creature and sac them to make them mine sub-theme to it, but I want to strengthen it up and put more of an emphasis on it. I do have ways to get instants and sorcerys back with something like Archaeomancer and +1/+1 counters so actual cards like Act of Treason and Mark of Mutiny aren't horrible ideas, but I also need other ways that are also more repeatable like Dominus of Fealty and Helm of Possession. What are some of the best options for this type of effect in Grixis colors?

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