Any permanent with the supertype “world” is subject to the state-based action for world permanents, also called the “world rule” (see rule 704.5k).
January 25, 2019 · Ravnica Allegiance
Any permanent with the supertype "world" is subject to the state-based action for world permanents, also called the "world rule" (see rule 704.5k).
April 27, 2018 · Dominaria
Any permanent with the supertype “world” is subject to the state-based action for world permanents, also called the “world rule” (see rule 704.5k).
May 1, 2014 · Journey into Nyx
Any permanent with the supertype “snow” is a snow permanent. Any permanent that doesn’t have this supertype is a nonsnow permanent, regardless of its name.
February 1, 2014 · Born of the Gods
Any permanent with the supertype "snow" is a snow permanent. Any permanent that doesn’t have this supertype is a nonsnow permanent, regardless of its name.
September 30, 2011 · Innistrad
Any permanent with the supertype "snow" is a snow permanent. Any permanent that doesn't have this supertype is a nonsnow permanent, regardless of its name.