Act of Treason


Format Legality
Modern Legal
Legacy Legal
Vintage Legal
Commander / EDH Legal
Duel Commander Legal
Tiny Leaders Legal
Frontier 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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Act of Treason Discussion

ksbaker1989 on Help me tweak it before ...

1 week ago

I've tried to write an essay for the advice I have for this deck three times already. I'm on an old tablet that can't handle many things, so I've given up. I'm hoping you can guess my reasoning through card suggestion only.

Consider removing:

Desecration Elemental, Hissing Iguanar, Jund Battlemage, Mogg War Marshal, Rot Shambler or Scavenger Drake, Claws of Gix, Bone Splinters, Curse of the Cabal or Grave Pact, Dragon Fodder, Fallen Ideal, Fists of Ironwood, and From Beyond UNLESS you decide to add an eldrazi with annihilator.

Consider adding:

Playsets of Thoughtpicker Witch, Reassembling Skeleton, Rot Shambler if you chose it over the Drake, Act of Treason and possibly a functionally similar card which I forget the name of.

Myr Servitor, Gravecrawler, Gravedigger, Blood Artist or Falkenrath Noble, and your favorite 1 or 2 drop discard spell, Thoughtseize or Duress come to mind.

MrMjolnirMan on The Wizard's Will

1 week ago

Absolutely love the concept. I might recommend tweaking Baral, Chief of Compliance and Warden of Evos Isle- you only have Docents as your flyers and you're not terribly heavy on instants and sorceries. I might recommend something simple like Sparkmage's Gambit, Send to Sleep, or even Act of Treason. The first two will do wonders with Willbreaker, giving you multiple creatures, and Act of Treason is just great for keeping yourself in the game if your creatures are smaller than theirs (they probably will be with Izzet.) Plus if you have Willbreaker out, you get to keep it!

ghoul_Legion on Frontier Mardu

3 weeks ago

Monastery Swiftspear your instant and spells cost too much to make any use of it.

Maybe you could use some Act of Treason style of cards to steal creatures and sacrifice them?There are like 4 of them in frontier format.

Grind on Brion Stoutarm

1 month ago

brion is great. cool deck and nice start.
if you want to leave in Academy Rector as a generally good card, you could just add more enchantments - Test of Endurance for a wincon or Oblivion Ring or Grasp of Fate for removal.
you could run Boros Signet over Fire Diamond.
also your Sunforger package looks a little lacking. you could consider Swords to Plowshares and/or Return to Dust. Warleader's Helix or Lightning Bolt can hit planeswalkers if need be.
i have a brion deck and found that instant speed Act of Treason effects are worth the extra mana. i run Act of Aggression and Turn Against - that way you can burn the card and use the ability when your opponent swings at you to save yourself some damage, too. it allows you to be a little more political.
also you can know that Phyrexian Devourer is a one-hit kill card (at a high cost to your library). he's my favorite finisher in a brion deck, and can be tutored up with things like Enlightened Tutor and Hoarding Dragon, both of which you're already running.
finally, if you ever feel like you're wanting for card advantage, Staff of Nin, Outpost Siege, and Crystal Ball are surprisingly playable.

Maximinn on Great Moments for a Heel Turn

1 month ago

Kari Zev's Expertise would also be a pretty great replacement for Act of Treason

Maximinn on Great Moments for a Heel Turn

1 month ago

AceGambitDragonfly: Thanks for your feedback. I only play Magic with a handful of friends at the kitchen table and we don't ever use sideboards. Infinite Obliteration is there because one guy keeps wrecking us with Reflector Mage and Emrakul, the Promised End so I'm hoping to snuff those out early if I get the chance. If I played in real tournaments, Infinite Obliteration would definitely be a sideboard card or not included at all.

Mark of Mutiny does look like a strictly better choice than Act of Treason for this deck since I'd be unlikely to take control of a creature if I didn't have an way to destroy it before the end of the turn. If the deck runs well I'll probably make the switch. As it is, it's built entirely of cards I already owned which is why there's a lot of 1 ofs.

AceGambitDragonfly on Great Moments for a Heel Turn

1 month ago

I dig the deck style, this seems like a lot of fun. Infinite Obliteration seems a little out of place here though, like maybe a sideboard card? Is there a specific use case you had for that card?

Sepaerately I'm wondering if because the creatures are going to die before the end of turn, you might get more mileage out of Mark of Mutiny instead of Act of Treason.

Final note: Blood Artist/Falkenrath Noble would do wonderful things in this deck.

SirClark on Your Creatures Are My Creatures Too!

2 months ago

Well after using Act of Treason, you just use Cloudshift to take control of that creature permanently. Then you can sacrifice it using Butcher of the Horde or Bone Splinters if you need to. Otherwise you just keep it forever. #Kidnapped

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