![The one champion card we get for the mastery is completely useless as the only way to upgrade champions after lvl 12 is by book of books : r/ClashRoyale The one champion card we get for the mastery is completely useless as the only way to upgrade champions after lvl 12 is by book of books : r/ClashRoyale](https://preview.redd.it/0djfy0j05id91.jpg?width=640&crop=smart&auto=webp&s=5ec4493e838c04a52eef22a05569c2de57a1cb3c)
The one champion card we get for the mastery is completely useless as the only way to upgrade champions after lvl 12 is by book of books : r/ClashRoyale
![Ash on Twitter: Ash on Twitter:](https://pbs.twimg.com/media/FPBa_-DWQAE_7p_.jpg:large)
Ash on Twitter: ""Card Mastery" coming in @ClashRoyale ✓Provides incentive to try other cards ✓Complete "mastery tasks" for rewards (see image) ✓Complete tasks on ladder, party mode, cw, challenges & tournaments. ✓3
![What Hearthstone could learn from the Mastery system in Legends of Runeterra: Empires of the Ascended What Hearthstone could learn from the Mastery system in Legends of Runeterra: Empires of the Ascended](https://blizzardwatch.com/wp-content/uploads/2021/03/jarvan.jpg)