Power (パワー Pawā) is a characteristic possessed by Z/X Card.

Power serves as both the stamina and attack value of a Z/X during battle. When a Z/X attacks another Z/X, it deals damage to the opposing Z/X equals to its Power. If a Z/X received damage equal or higher to its Power in a turn, or if its Power is reduced to 0 or less, it is destroyed and sent to Charge.