Nothing bad would ever happen. Whenever you wanted to use it you could just go and type in the code on the back of the card.
Card-Jitsu
I HAVE POWER CARDS on Club Penguin and I NEVER lost ONE game of "CARD JIT-SU" I am a black belt AND I bought them
Here They are: Series 1: Club Penguin Trading Card Game Series 2: Club Penguin Card Jitsu Series 3: Club Penguin Card Jitsu Fire Series 4: Club Penguin Card Jitsu Water Series 5: Club Penguin Card Jitsu Second Wave Series 6: Club Penguin Card Jitsu Snow Series 7: Club Penguin Card Jitsu Shadow
An unused club penguin card number is 4204-5677-8162-8503.
It gives you a membership
595
The newest club penguin game is card jitsu fire only for members though if u are a ninja !
No
!u2r3ga77y
club penguin cards
You need a online membership, a game card or a certificate
Unfortunately you cannot. Club Penguin doesn't allow Ultimate Game Cards to be used. Don't worry, I tried myself. Because I had already bought the card, I just used it on another game called Fantage.. but stick with Club Penguin. They are way better... I think. For Club Penguin, you are only allowed to use their game cards (I bought mine from Walmart) or a Gift Certificate.