The fancier the card pack, the better its rewards!
All card packs contain cards and tapes, but the amount and rarity of the contents depend on the pack.
Legendary packs have the best rewards and are a great source of Epic character cards.
Gold packs grant a lot of Rare character cards, but they also have a chance of giving Epic character cards.
You can also collect a free pack every 4 hours, which is a reliable, steady source of tapes and characters. Don't forget to claim it whenever ready!