CARD KING

the first 2 flip is free, so F2P can play 10 round without paying.

It cost 300gem to flip per new card after 2 flip each round.  also it cost free to flip same card you already flilpped, so total gem cost is the same.

3000gem for 12cards=6items. so avarage cost is "500gem for 1item". (3000÷5)

I thinks, the cost is not so cheap.  only who has much gem better play this.

(you can reduce cost by reseting game after getting 2 and/or 1 head)

compared to VIP shop...

8hour speed up = 240gem  <  expensive!

500K wood = 180gem < expensive!

legendary head = 2000gem >  cheap