Some of the worst forced ads and p2w ive ever seen. Granted, it IS easy to acquire gems to acquire cards, but after a certain point its impossible to do the solo missions without better cards. And the matchmaking? Now, I was down at bronze league, and I was pit against the rank #1 highest in the game. CONVINCE ME thats a fair fight. Edit: down to 2 stars. Why? Rarity changes of cards. The zombie teleporter was uncommon. Now it's legendary. I had 4. Now I have zero. Thanks.