With this calculator you can figure up how many levels you can upgrade your Rumblers with the cards that you have and how much Gold you will need for it.
It is quite simple. In the upper section of this page, introduce the Rumbler type, it's current level and the amount of cards that you already have.
When click the button, all the levels that this Rumbler can be upgraded will be shown. This will be calculated based on the current level and the available cards. Also you'll see the amount of Gold you'll have to use in order to upgrade your favorite Rumbler. So you better start saving!
Simple!
