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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)

Power

The number before the slash printed on the lower right corner of a creature card is its power. See rule 208, "Power/Toughness." Creatures that attack or block assign combat damage equal to their power. See rule 310, "Combat Damage Step." Some creature cards have power represented by * instead of a number. The object has a characteristic-defining ability that sets its power according to some stated condition. This ability functions in all zones. A noncreature permanent has no power, even if it's a card with a power printed on it (such as a Licid that's become an Aura).

Power

Power is a characteristic that only creatures have. The number before the slash printed on the lower right corner of a creature card is its power. See rule 208, "Power/Toughness." Creatures that attack or block assign combat damage equal to their power. See rule 310, "Combat Damage Step." Some creature cards have power represented by * instead of a number. The object has a characteristic-defining ability that sets its power according to some stated condition. This ability functions in all zones. A noncreature permanent has no power, even if it's a card with a power printed on it (such as a Licid that's become an Aura).