The plane of Tarkir was once dominated by dragons, but in a massive war over a thousand years ago, humans succeeded at wiping them out.

Each wedge is the colors of a clan of warriors that venerate a certain quality of the dragon, and an anatomical feature that represents it.

The clans, and their khans, are as follows:[10] Tarkir is the birthplace of the dragon-worshipping planeswalker Sarkhan Vol, first introduced in Shards of Alara.

Now that the Eldrazi have arisen again, both Sarkhan and Sorin Markov have arrived on Tarkir, the last known location of Ugin, in search of his help.

[15] Notable cards from Khans of Tarkir include Anafenza, the Foremost, Jeskai Ascendancy, Treasure Cruise, Dig Through Time, Monastery Swiftspear, and the allied coloured Fetch Lands such as Flooded Strand.

Notable cards from Fate Reforged include Ugin, the Spirit Dragon and Monastery Mentor.

Notable cards from Dragons of Tarkir include Sidisi, Undead Vizier, Atarka's Command, and Collected Company.