1 απάντηση σε αυτό το θέμα

[AlexDaisy]

The cost of boosters increase every 10 levels.

My advice is to refresh them before hitting the next 10th level. Even if you still have 2 days left on or 3, you should refresh it before hitting the next 10th level, because their prices more than double.

This can save you lots of money in the long run!

[Stalkie77]

Yep,i agree with you.Thus sometimes the increase is minor and for the quite lvl up Heros that amount of coins are worthless.