For some reason, the game goes so slowly even though most battles are against bots. Why can't we have a faster auto option like Spellstone? Also, many aspects of this game are not noob friendly and really pushes you to spend money to advance. Balancing in MP is non-existant. No matter how good your strategy is, you'll always lose to someone who has better, higher grade cards than you. Advice for noobs: Stay away from Dark Tower + Raids or even better yet, stay away from this game.
One game takes way too long to complete. Too bad the 2x speed option feels like 1.2x. Also, don't get invested in this game. As you rank up, you end up facing more P2W players. Power balance is non-existant.
Tl;dr: Hope you're ready to throw money at your screen.