Historical Rules · 19 November 2021
Rule 100.4
Official source text from the 19 November 2021 Rules release
Each player may also have a sideboard, which is a group of additional cards the player may use to modify their deck between games of a match.
Historical Rules · 19 November 2021
Official source text from the 19 November 2021 Rules release
Each player may also have a sideboard, which is a group of additional cards the player may use to modify their deck between games of a match.