Conspiracy is a Magic: The Gathering set and format released on June 6, 2014, cryptically announced through a strange card at the Born of the Gods prerelease events at a game store in the Philippines. It was designed as the first ever multiplayer draft format and is released as boosters, each with 10 commons, 3 uncommons, 1 rare or mythic rare, 1 "draft matters" card of any rarity, and 1 token or marketing card. The tagline for the set is "Pick. Plot. Play.". Many cards from past expansions show up in Conspiracy, but there are also 65 new cards. Excluding the 13 "Conspiracy"-type cards, which can be only used in Conspiracy or Cube drafts, all of the new cards are legal in the Vintage, Legacy, and Commander formats.
Unlike all sets that released after 2002 (other than parody set Unhinged), Conspiracy was not released in Magic Online. A portion of the new cards that are not "Conspiracy"-type nor having draft-related ability were featured as a part of the Magic Online exclusive set Vintage Masters, including cards with the Conspiracy-themed mechanics Will of the Council, Parley, and Dethrone. 19 cards that are not of the "Conspiracy"-type nor having draft-related ability are still not available in any form on Magic Online. 
Unlike normal drafts, where players pass around boosters pulling out the card that they want each time, Conspiracy has drafts of six to eight players who split up into two groups for a free-for-all. Card mechanics deal primarily with the adjusted draft format, such as Cogwork Librarian's effect, which allows a player to exchange it for a different drafted card. A new card type, Conspiracy, was introduced; these special cards are set aside at the start of the game and provide bonus effects at no mana cost, sometimes after remaining hidden. A new Planeswalker, Dack Fayden, was introduced, marking the character's debut on a card after first appearing in a 2011 comic book.