You can unlock or improve your talents. Any talent permanently increases your performance in combat. Completing side missions will grant you various rewards need for improving your defenses. Here is a short and easy side missions. If you feel like you are ready for a challenge choose side mission of hard difficulty for even greater rewards. Don't forget to visit mine regularly. We will keep gathering gold and other valuables - even if you are not around - but you still need to collect them. Upgrading the cards makes them better. But you need so-called shards for upgrade. Gather 5 cards shards to add the card to your collection. Shards can be received as battle rewards or bought in the shop. If you have no shards, you can fuse magic dust. Each fused dust adds one shard to a card.