Core Set K2015

Core Set K2015 is a core set and 4th expansion of the Korakhosverse. It's a standalone set that was released on November 3rd, 2015, and it features the return of the mechanic Populate.

Set Details
Core Set K2015 contains 249 cards (101 commons, 60 uncommons, 53 rares, 15 mythics and 20 basic lands). It is heavily focused on tokens, and it features the Populate mechanic from Return to Ravnica.

Storyline
Core Set K2015 focuses on the worldbuilding of five different planes in the Korakhosverse, and serves as a the first sneak peak into their inhabitants and the struggles they face. Each set is mainly represented by one color as follows:
 * Celestia: The plane represented in white is the world of Celestia, a plane in which angels, aven and other winged creatures rule as the high class.
 * Khaliz-Dorahn: The plane represented in blue is Khaliz-Dorahn, a world which is currently holding prisoner a creature of immense power and evil, whose release could mean the end of everything.
 * Nimunot: ' The plane represented in black is Nimunot, a world in which daylight only comes for three consecutive days, and for the rest of the year the world enters the nighttime and creatures of darkness are free to roam.
 * Demmurya: The plane represented in red is Demmurya, a world where the aristocracy rules mercilessly over the working class thanks to their powers of premonition.
 * Medranos: The plane represented in green is Medranos, the most abundant plane in the Multiverse, a world where everything is in constant growth and evolution.

Each world depicted in this set has a rare legendary creature that relates to the color's faction and is linked to the plane's current story:
 * Moreena (Celestia)
 * Logayr (Khaliz-Dorahn)
 * Vythraktos (Nimunot)
 * Kragnoss (Demmurya)
 * Ankryss (Medranos)

The set also features a planeswalker in a different color for each plane and a mythic card that relates to it:
 * Raidragos (Celestia)
 * Seluriel (Khaliz-Dorahn)
 * Vaertris (Nimunot)
 * Vorreia (Demmurya)
 * Malextros (Medranos).