Historical Rules · 18 June 2010
Rule 400.10a
Official source text from the 18 June 2010 Rules release
Cards in a player's sideboard are outside the game. See rule 100.4.
Historical Rules · 18 June 2010
Official source text from the 18 June 2010 Rules release
Cards in a player's sideboard are outside the game. See rule 100.4.