5 stars: It's an amazing game. The fact that it's an online game only, they can do a lot of interesting things that other games like mtg can't. The single player campaign is enormous, if you just want to play the A.I. you play for months without repetition. Each playthrough your deck is different. There's also multi-player and tournaments, drafts, etc. Very free to play friendly as well. Highly recommended.
5 stars: I played this game when it first dropped and it was pretty much trash, it seemed like if you put money into it you got the wins, so I quit. Decided to try again almost a year later and it has improved substancialy, the strategy is challenging and fun to master. Tons of deck options and endless combinations and customizations for any player to have fun.
4 stars: I had trouble understanding the game in the beginning. Attacking on every second turn felt so restricted and I found myself wishing the health start was 30 instead of 20. Now I appreciate it a lot more and really like how rewarding the game can be for the weekly crates and quest XP. Decent game right now, I think it will only get better in the future.
3 stars: Free to play seems to work, but fonts too small... Love this game so far, but on my phone (6.7″ pixel pro) I have a VERY hard time reading the card text. I really wish the clock to zoom was a lot bigger. Developers need to realize not all gamers are 20 with perfect eyesight. Otherwise game is great. Lots do go without spending. No adds, no...