Key to Rewards

[Kyuubi]

Do I use the use the KtR card I have in order to get another one?

 

[strike raider]

Yes because you can only carry one KtR at one time. Just use it on any door and you can get any one from a random battle.

 

[AnTi-SoRa]

usually your best bet to get a KtR card is any world from Atlantica on, but in people's playing experiences they usually find the best spot for these gold cards are Destiny Islands

 

[Oathkeeper1313]

yes, they are fairly easy to find

 

[Mezmerize]

You can find them pretty fast. Yes you do need to use the card before you are able to get a new one.