Historical Rules · 16 January 2026
Rule 400.11a
Official source text from the 16 January 2026 Rules release
Cards in a player’s sideboard are outside the game. See rule 100.4.
Historical Rules · 16 January 2026
Official source text from the 16 January 2026 Rules release
Cards in a player’s sideboard are outside the game. See rule 100.4.