Resources

Magic: The Gathering Comprehensive Rules Changes

Masters Edition to Lorwyn (Single Change View)

General changes

Old rule (Masters Edition) New rule (Lorwyn)

Declare Attackers

To declare attackers, the active player chooses a set of creatures that will attack and pays any costs they require to attack. Only creatures can attack, and the following creatures can't attack: tapped creatures (even those that can attack without tapping) and creatures the active player didn't control continuously since the beginning of the turn (except those with haste). Other effects may also affect whether or not a set of creatures could attack. See rule 500, "Legal Attacks and Blocks."

Declare Attackers

To declare attackers, the active player chooses a set of creatures that will attack, declares whether each creature is attacking the defending player or a planeswalker that player controls, and pays any costs required to allow those creatures to attack. Only creatures can attack, and the following creatures can't attack: tapped creatures (even those that can attack without tapping) and creatures the active player didn't control continuously since the beginning of the turn (except those with haste). Other effects may also affect whether or not a set of creatures could attack. See rule 500, "Legal Attacks and Blocks."