The 249-card Scars of Mirrodin release, which is due out from Wizards of the Coast on October 1, marks the beginning of a brand new block for Magic The Gathering. Its release will mark the latest rotation of Standard Sets as it eliminates the Shards block and Magic 2010 from play. The Standard Format after the release of Scars of Mirrodin will consist of Zendikar Block, Magic 2011, and Scars of Mirrodin. The second set in the Scars of Mirrodin block, Mirrodin Beseiged, will be released on February 4, 2011.
The Scars of Mirrodin set revisits the artifact-laden world of Mirrodin and will mark the appearance of planeswalker Elspeth in her new form, Elspeth Tiriel. She will be joined the new planeswalker Koth. A number or popular tribal races including Elves, Cats, Elephants, Vampires, Dragons, Zombies, Sphinxes, Angels and Demons, return in Scars of Mirrodin.