Cards can be classified by their rarity:
- Bronze: Common cards (there are 50 of them)
- Silver: rare cards (there are 50 of them)
- Gold: extra-rare cards (there are 50 of them)
Rarity has to do with the album value. A golden card is more valuable than a silver one; and a silver card is more valuable than a bronzed one.
The chances of getting rare cards depend on your leaderboard position: The higher you position is, the harder it will be to get rare cards.