im splitted about the idea. To not force us on a spezific map is a good way to go. But gold as the only currency for everything (beside of buying cards) idk. i think i must see that ingame to get a feeling about it. About the 2 elements i think they can be removed then. One maked cardupgrades giving tokens and the other doubled the numbers of tokens. If there is just gold needed we dont need them at all, becouse you was able to sell the cards after a match for gold if you didnt need it even w/o an element.