What are cards inside the Star Boxes and what does card rarity mean?
Each Star Box contains three Cards. These Cards represent the different rewards you might get from the box. Each one is a surprise, but some rewards are quite common and others are quite rare. The rarity on the back of each Card gives you a hint of what you might find on the other side.
There are four different "rarities" shown on the Card backs:
Common (plain Card)
Rare (golden border)
Special (pink) - These are very rare
Marvelous (violet) - These are stupendously rare
Generally, rarer Cards equate to more valuable rewards on the Card. These are found more often in the special red Star Boxes.