 Combat uses a card @-@ based battle system executed in real time . The player can jump and maneuver around the battle screen as they would on the field map , but all physical attacks , magic , items , and summonings are activated by playing cards . Cards are ranked from zero to nine , and are used for making attack combos or breaking enemy cards . With the exception of zero @-@ ranked cards which are more expensive in terms of Card Points ( CP ) compared to other cards of the same type and have other ranks , more CP are required to place higher @-@ ranked cards in the player 's deck . Card Points — increased through level up — limit the number of cards the player can use in a deck . Cards with rank " zero " can break any opposing card or combo if played after the opposing card or combo , but they can be broken by any card or combo as well if it is played after the zero card is played . Breaking an opposing card will cancel that attack and stun the loser of a card break for a short time . Special enemy cards may be obtained by defeating enemies and bosses , and are used to give the player a temporary ability , ranging from enhanced offensive and defensive capabilities to modifying the attributes of certain cards . 
