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Magic: The Gathering Comprehensive Rules Changes

Masters Edition to Lorwyn (Single Change View)

General changes

Old rule (Masters Edition) New rule (Lorwyn)

308.1.

As the declare attackers step begins, the active player declares attackers (this game action doesn't use the stack). If the game allows the active player to attack multiple other players, he or she declares which player each creature is attacking. Effects from a creature that refer to a defending player refer only to the defending player it is attacking. Then any abilities that triggered on attackers being declared go on the stack. (See rule 410, "Handling Triggered Abilities.") Then the active player gets priority and players may play spells and abilities.

Example: Tanglewalker reads, "Creatures you control are unblockable as long as defending player controls an artifact land." Whether a creature you control is unblockable depends only on whether the player being attacked by it controls an artifact land.

Example: Guiltfeeder reads, in part, "Whenever Guiltfeeder attacks and isn't blocked, defending player loses 1 life for each card in his or her graveyard." Only the player being attacked loses life due to Guiltfeeder's ability.

308.1.

As the declare attackers step begins, the active player declares attackers. This game action doesn't use the stack. If the defending player controls any planeswalkers, or the game allows the active player to attack multiple other players, he or she declares which player or planeswalker each creature is attacking. Effects from a creature that refer to a defending player refer only to the defending player it's attacking (if it's attacking a player) or the controller of the planeswalker it's attacking (if it's attacking a planeswalker). Then any abilities that triggered on attackers being declared go on the stack. (See rule 410, "Handling Triggered Abilities.") Then the active player gets priority and players may play spells and abilities.