Rules
Comprehensive Rules
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9 Sections147 chapters
Additional Rules34 chapters
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700General701Keyword Actions702Keyword Abilities703Turn-Based Actions704State-Based Actions705Flipping a Coin706Rolling a Die707Copying Objects708Face-Down Spells and Permanents709Split Cards710Flip Cards711Leveler Cards712Double-Faced Cards713Substitute Cards714Saga Cards715Adventurer Cards716Class Cards717Attraction Cards718Prototype Cards719Case Cards720Omen Cards721Station Cards722Preparation Cards723Controlling Another Player724Ending Turns and Phases725The Monarch726The Initiative727Restarting the Game728Rad Counters729Subgames730Merging with Permanents731Day and Night732Taking Shortcuts733Handling Illegal Actions
733. Handling Illegal Actions
733.1
If a player takes an illegal action or starts to take an action but can’t legally complete it, the entire action is reversed and any payments already made are canceled. No abilities trigger and no effects apply as a result of an undone action. If the action was casting a spell, the spell returns to the zone it came from. Each player may also reverse any legal mana abilities that player activated while making the illegal play, unless mana from those abilities or from any triggered mana abilities they caused to trigger was spent on another mana ability that wasn’t reversed. Players may not reverse actions that moved cards to a library, moved cards from a library to any zone other than the stack, caused a library to be shuffled, or caused cards from a library to be revealed.
733.2
When reversing illegal spells and abilities, the player who had priority retains it and may take another action or pass. The player may redo the reversed action in a legal way or take any other action allowed by the rules.