Anti-Pay-to-Win reward system

Root spell
Card level

The only thing that changes, is the reward!

How to level up cards?

But there is more!

A level 9, foil card

To summarize

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Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store