Elephant Resurgence

Oracle Text

Each player creates a green Elephant creature token. Those creatures have "This creature's power and toughness are each equal to the number of creature cards in its controller's graveyard."

Card Rulings

10/4/2004 The token creatures’ power and toughness continuously adjust. They are not “locked in” when the spell resolves. This is because the tokens get an ability, rather than simply having their power and toughness set.