- The button to start duels is greyed out
- Duels mode is not unlocked for me
- Error: "There was an error starting your game. please wait a few minutes and try again."
To play Duels, you must first have every class at level 10 or above.
If you receive the error "There was an error starting your game", it means you are trying to use a deck that contains cards which are not playable in Duels. If you imported your deck from the deck builder, delete it and create your deck again in-game instead.