Historical Rules · 23 April 2010
Rule 901.13
Official source text from the 23 April 2010 Rules release
In Grand Melee Planar Magic games, multiple plane cards may be face up at the same time.
Historical Rules · 23 April 2010
Official source text from the 23 April 2010 Rules release
In Grand Melee Planar Magic games, multiple plane cards may be face up at the same time.