Chaos Magic is a set of additional rules that can be used on top of almost any other format, and it's what inspired the Planechase product. The identifying feature of this variation is its plethora of forced random effects at every turn.

For more info read at source: http://community.wizards.com/magicthegathering/wiki/Chaos_Magic

此版本中的新功能：

New menu option: Basic rules