0
You play as a guest: your cards live on this device only.
or
Collection
All cards
Trade up
Put in 10 cards of one rarity and pay the fee, get one random card of the next rarity. The 10 are destroyed.
Friends
Friends need an account.
or
Your guest cards stay with your new account.
Choose a pseudo first, friends find you by it.
You✓ Accepted
✓ Accepted
Profile
A profile needs an account.
or
Your guest cards stay with your new account.