General Rulings - 704

• 704.1 - State-based actions are game actions that happen automatically whenever certain conditions (listed below) are met. State-based actions don't use the stack. [CompRules 2009/07/08]
• 704.1a - Abilities that watch for a specified game state are triggered abilities, not state-based actions. (See Rule 603, "Handling Triggered Abilities.") [CompRules 2009/07/08]
• 704.2 - State-based actions are checked throughout the game and are not controlled by any player. [CompRules 2009/07/08]
• 704.3 - Whenever a player would get priority (see Rule 115, "Timing and Priority"), the game checks for any of the listed conditions for state-based actions, then performs all applicable state-based actions simultaneously as a single event. If any state-based actions are performed as a result of a check, the check is repeated; otherwise all triggered abilities that are waiting to be put on the stack are put on the stack, then the check is repeated. Once no more state-based actions have been performed as the result of a check and no triggered abilities are waiting to be put on the stack, the appropriate player gets priority. This process also occurs during the cleanup step (see Rule 514), except that if no state-based actions are performed as the result of the step's first check and no triggered abilities are waiting to be put on the stack, then no player gets priority and the step ends. [CompRules 2009/07/08]
• 704.4 - Unlike triggered abilities, state-based actions pay no attention to what happens during the resolution of a spell or ability. [CompRules 2009/07/08]
  Example: A player controls a creature with the ability "This creature's power and toughness are each equal to the number of cards in your hand" and casts a spell whose effect is "Discard your hand, then draw seven cards." The creature will temporarily have toughness 0 in the middle of the spell's resolution but will be back up to toughness 7 when the spell finishes resolving. Thus the creature will survive when state-based actions are checked. In contrast, an ability that triggers when the player has no cards in hand goes on the stack after the spell resolves, because its trigger event happened during resolution. [CompRules 2009/07/08]
• 704.5 - The state-based actions are as follows: [CompRules 2009/07/08]
• 704.5a - If a player has 0 or less life, he or she loses the game. [CompRules 2009/07/08]
• 704.5b - If a player attempted to draw a card from an empty library since the last time state-based actions were checked, he or she loses the game. [CompRules 2009/07/08]
• 704.5c - If a player has ten or more poison counters, he or she loses the game. [CompRules 2009/07/08]
• 704.5d - If a token is phased out, or is in a zone other than the battlefield, it ceases to exist. [CompRules 2009/07/08]
• 704.5e - If a copy of a spell is in a zone other than the stack, it ceases to exist. If a copy of a card is in any zone other than the stack or the battlefield, it ceases to exist. [CompRules 2009/07/08]
• 704.5f - If a creature has toughness 0 or less, it's put into its owner's graveyard. Regeneration can't replace this event. [CompRules 2009/07/08]
• 704.5g - If a creature has toughness greater than 0, and the total damage marked on it is greater than or equal to its toughness, that creature has been dealt lethal damage and is destroyed. Regeneration can replace this event. [CompRules 2009/07/08]
• 704.5h - If a creature has been dealt damage by a source with deathtouch since the last time state-based actions were checked, that creature is destroyed. Regeneration can replace this event. [CompRules 2009/07/08]
• 704.5i - If a planeswalker has loyalty 0, it's put into its owner's graveyard. [CompRules 2009/07/08]
• 704.5j - If two or more planeswalkers that share a planeswalker type are on the battlefield, all are put into their owners' graveyards. This is called the "planeswalker uniqueness rule." [CompRules 2009/07/08]
• 704.5k - If two or more legendary permanents with the same name are on the battlefield, all are put into their owners' graveyards. This is called the "legend rule." If only one of those permanents is legendary, this rule doesn't apply. [CompRules 2009/07/08]
• 704.5m - If two or more permanents have the supertype world, all except the one that has been a permanent with the world supertype on the battlefield for the shortest amount of time are put into their owners' graveyards. In the event of a tie for the shortest amount of time, all are put into their owners' graveyards. This is called the "world rule." [CompRules 2009/07/08]
• 704.5n - If an Aura is attached to an illegal object or player, or is not attached to an object or player, that Aura is put into its owner's graveyard. [CompRules 2009/07/08]
• 704.5p - If an Equipment or Fortification is attached to an illegal permanent, it becomes unattached from that permanent. It remains on the battlefield. [CompRules 2009/07/08]
• 704.5q - If a creature is attached to an object or player, it becomes unattached and remains on the battlefield. Similarly, if a permanent that's neither an Aura, an Equipment, nor a Fortification is attached to an object or player, it becomes unattached and remains on the battlefield. [CompRules 2009/10/01]
• 704.5r - If a permanent has both a +1/+1 counter and a -1/-1 counter on it, N +1/+1 and N -1/-1 counters are removed from it, where N is the smaller of the number of +1/+1 and -1/-1 counters on it. [CompRules 2009/07/08]
• 704.5s - If a permanent with an ability that says it can't have more than N counters of a certain kind on it has more than N counters of that kind on it, all but N of those counters are removed from it. [CompRules 2009/10/01]
• 704.5t - In a Two-Headed Giant game, if a team has 0 or less life, that team loses the game. [CompRules 2009/10/01]
• 704.5u - In an EDH game, a player that's been dealt 21 or more combat damage by the same general over the course of the game loses the game. (See Rule 903.) [CompRules 2009/10/01]
• 704.6 - If multiple state-based actions would have the same result at the same time, a single replacement effect will replace all of them. [CompRules 2009/07/08]
  Example: You control Lich's Mirror, which says "If you would lose the game, instead shuffle your hand, your graveyard, and all permanents you own into your library, then draw seven cards and your life total becomes 20." There's one card in your library and your life total is 1. A spell causes you to draw two cards and lose 2 life. The next time state-based actions are checked, you'd lose the game due to Rule 704.5a and Rule 704.5b. Instead, Lich's Mirror replaces that game loss and you keep playing. [CompRules 2009/07/08]