e've had Event Decks for a few years now, so you could be forgiven for losing track of some of them. You could be, that is, unless you read this Arcana, which will catch you back up through February 2013.

Each Event Deck is Standard-legal when it's released, and it's designed to be competitive at Friday Night Magic. This means that the decks pull cards from the entire Standard environment as it stood when the deck was released.

Mirrodin Besieged

• Infect & Defile (blue-black)
• Into the Breach (red)

Sets contained: Zendikar, Worldwake, Rise of the Eldrazi, Magic 2011, Scars of Mirrodin, Mirrodin Besieged

Standard Legal until: September 2011 (Innistrad released; Zendikar block rotated out)

New Phyrexia

• War of Attrition (white)
• Rot from Within (green)

Sets contained: Zendikar, Worldwake, Rise of the Eldrazi, Magic 2011, Scars of Mirrodin, Mirrodin Besieged, New Phyrexia

Standard Legal until: September 2011 (Innistrad released; Zendikar block rotated out)

Magic 2012 Core Set

• Illusionary Might (blue)
• Vampire Onslaught (black)

Sets contained:

• Illusionary Might: Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, Magic 2012
• Vampire Onslaught: Zendikar, Worldwake, Magic 2011, Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, Magic 2012

Standard Legal until:

• Illusionary Might: October 2012 (Return to Ravnica released; Scars of Mirrodin block rotated out)
• Vampire Onslaught: September 2011 (Innistrad released; Zendikar block rotated out)

Innistrad

• Hold the Line (white)
• Deathfed (green-blue-black)

Sets contained: Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, Magic 2012, Innistrad

Standard Legal until: October 2012 (Return to Ravnica released; Scars of Mirrodin block rotated out)

Dark Ascension

• Gleeful Flames (red)
• Spiraling Doom (black-green)

Sets contained: Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, Magic 2012, Innistrad, Dark Ascension

Standard Legal until: October 2012 (Return to Ravnica released; Scars of Mirrodin block rotated out)

Avacyn Restored

• Humanity's Vengeance (white-blue)
• Death's Encroach (black)

Sets contained: Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, Magic 2012, Innistrad, Dark Ascension, Avacyn Restored

Standard Legal until: October 2012 (Return to Ravnica released; Scars of Mirrodin block rotated out)

Magic 2013 Core Set

• Repeat Performance (green-white)
• Sweet Revenge (blue-black-red)

Sets contained: Scars of Mirrodin, Mirrodin Besieged, New Phyrexia, Magic 2012, Innistrad, Dark Ascension, Avacyn Restored, Magic 2013

Standard Legal until: October 2012 (Return to Ravnica released; Scars of Mirrodin block rotated out)

Return to Ravnica

• Wrack and Rage (black-red)
• Creep and Conquer (black-green)

Sets contained: Innistrad, Dark Ascension, Avacyn Restored, Magic 2013, Return to Ravnica

Standard Legal until: Fall 2013 (Fall 2013 large set releases; Innistrad block rotates out)

Gatecrash

• Thrive and Thrash (blue-red-green)
• Rally and Rout (red-white)

Sets contained: Innistrad, Dark Ascension, Avacyn Restored, Magic 2013, Return to Ravnica, Gatecrash

Standard Legal until: Fall 2013 (October 2013 large set released; Innistrad block rotates out)

Well! That was informative! Since we're on the subject of Event Decks, we should also mention that starting with Dragon's Maze, there will be only one Event Deck per set, not two. Which means it's going to take a pretty long time before we can construct a full 32-deck bracket to see which one's the most powerful!