Rule · Chapter 5
cr:5.4.5
A property-static ability is a static ability that defines the property, or value of a property, on an object that would normally be found elsewhere on that object.
Example: Mutated Mass has the text “This card’s {p} and {d} are equal to twice the number of cards in your pitch zone with different costs,” which is a property-static ability that defines the power and defense of the card, otherwise printed on the card with (c).