suggestions

Hello good afternoon
I called Eudson, I was a grinder of a game of ios, and I would suggest that the inactive heroes that we have in the game we could trocalo for another our choice for diamond or some stone that could only be bought in the shop,
has star up item, and rank up
if you can make the same stones from the World Tree, from white to green from green to blue from blue to orange from orange to red
Name in game: Cappuccino