|Last seen||Planechase Anthology|
Connection with Theros
Mark Rosewater has stated that the planes showcased in Planechase and Planechase 2012 were created as potential locations for future stories. However, the Greek-themed Arkhos has been rebranded to Theros, just as Mongseng was rebranded to Tarkir. Rosewater has stated that bigger factors than continuity led to the name change. He later stated that they couldn't clear the Arkhos name. According to Doug Beyer, both planes now exist in the multiverse.
- Doug Beyer (September 02, 2009). "The Planes of Planechase". magicthegathering.com. Wizards of the Coast.
- Mark Rosewater (August 24, 2014). "So in recent years...". Blogatog. Tumblr.
- Mark Rosewater (September 1, 2014). "Khan Do Attitude, Part 1". magicthegathering.com. Wizards of the Coast.
- Mark Rosewater (September 1, 2014). "Can we get...". Blogatog. Tumblr.
- Mark Rosewater (March 3, 2016). "Has R&D...". Blogatog. Tumblr.
- Doug Beyer (October 13, 2013). "Why Theros and not Arkhos? Are they similar?". A Voice for Vorthos. Tumblr.