Class mastery cores
A very interesting thought on mastery cores being used to change a champion's star value came to me.
For example, using a few resources like gold and certain types of catalysts along with a specific number of class mastery cores, the player can take a 2 star champion and change them to a 3 star champion, a 3 star to a 4 star, and so on...
Fill me in on your thoughts on this idea
Thanks