Token system needs to be reconsidered.
Tokens are not easily collected, promotion tokens for next rariry level doubled...for example I was about to promote an epic assault and I needed 120 tokens in order to hit promote button and make him a 5 star one...Suddenly, after last update I was asked to spend 250 to promote him. Moreover, as I saw a pic of a 6 star survivor, I noticed that each trait demands 500!!! TTOKENS to go to the next level! That's ridiculous! Find a solution NG!