A creature card has two numbers separated by a slash printed in its lower right corner. The first number is its power (the amount of damage it deals in combat); the second is its toughness (the amount of damage needed to destroy it). For example, 2/3 means the object has power 2 and toughness 3. Power and toughness can be modified or set to particular values by effects.
208Power/Toughness
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Rather than a fixed number, some creature cards have power and/or toughness that includes a star (*).
The card may have a characteristic-defining ability that sets its power and/or toughness according to some stated condition. (See rule 604.3.) Such an ability is worded “[This creature’s] [power or toughness] is equal to . . .” or “[This creature’s] power and toughness are each equal to . . .” This ability functions everywhere, even outside the game. If the ability needs to use a number that can’t be determined, including inside a calculation, use 0 instead of that number.
Example: Lost Order of Jarkeld has power and toughness each equal to 1+*. It has the abilities “As this creature enters, choose an opponent” and “Lost Order of Jarkeld’s power and toughness are each equal to 1 plus the number of creatures the chosen player controls.” While Lost Order of Jarkeld isn’t on the battlefield, there won’t be a chosen player. Its power and toughness will each be equal to 1 plus 0, so it’s 1/1.
The card may have a static ability that creates a replacement effect that sets the creature’s power and toughness to one of a number of specific values as it enters the battlefield or is turned face up. (See rule 614, “Replacement Effects.”) Such an ability is worded “As [this creature] enters . . . ,” “As [this creature] is turned face up . . . ,” or “[This creature] enters as . . .” and lists two or more specific power and toughness values (and may also list additional characteristics). The characteristics chosen or determined with these effects affect the creature’s copiable values. (See rule 707.2.) While the card isn’t on the battlefield, its power and toughness are each considered to be 0.
A noncreature permanent has no power or toughness, even if it’s a card with a power and toughness printed on it (such as a Vehicle). A noncreature object not on the battlefield has power or toughness only if it has a power and toughness printed on it.
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If an effect would be created that sets the base power and/or toughness of a noncreature permanent, or otherwise modifies its power and/or toughness, that effect is created even though it doesn’t do anything unless that permanent becomes a creature.
Example: Veteran Motorist has the ability “Whenever this creature crews a Vehicle, that Vehicle gets +1/+1 until end of turn,” and it’s tapped to pay the crew cost of a Vehicle. This triggered ability resolves while the Vehicle it crewed isn’t yet a creature. The continuous effect is created and will apply to the Vehicle once it becomes a creature.
Some effects refer to a creature’s “base power,” “base toughness,” or “base power and toughness.”
Effects that set a creature’s power and/or toughness to specific values may refer to base power and/or toughness. Other continuous effects may further modify the creature’s power and toughness. See rule 613, “Interaction of Continuous Effects.”
Some effects check a creature’s base power and/or toughness. These effects see that creature’s characteristics after applying any characteristic-defining abilities and abilities that set power and/or toughness, ignoring any effects and counters that modify power and/or toughness without setting them. See rule 613, “Interaction of Continuous Effects.”
If a creature somehow has no value for its power, its power is 0. The same is true for toughness.