What is Planechase and how do you play it?
Planechase is a fun way to add a bit of chaos and a ton of fun to your Commander night! To start, you will need a planar deck and a planar die (both provided through this site).
Start your Commander game and reveal the top card of the planar deck before player one begins their first turn. That is the plane that everybody is on and its affects apply to all players.
During each player's main phase, they may roll the six-sided planar die for a chance to take an action: If it lands on the planeswalker symbol, the players must planeswalk and move on to the next plane.
If it lands on the Chaos symbol, that player must trigger the Chaos ability of the plane. The first roll each turn is free, but if the player wants to roll the planar die more than once, they must pay (1) additional for each dice roll - the second roll each turn costs (1), the third roll costs (2), and so on.
The planar die can only be rolled at sorcery speed by the player who currently holds priority.

