Historical Rules · 15 July 2011
Rule 805.5a
Official source text from the 15 July 2011 Rules release
A player may cast a spell, activate an ability, or take a special action when his or her team has priority.
Historical Rules · 15 July 2011
Official source text from the 15 July 2011 Rules release
A player may cast a spell, activate an ability, or take a special action when his or her team has priority.