this would be a good game if not for all the RNG i played till arena 10 just to get gems for another game. the biggest problem is the merging, it gives you a random unit taking all the strategy out of the game it also reduces their "power" and i swear the game cheats i can have a full board of high level units and merged multiple times and the damage they do sometimes is great, other times is like you didnt upgrade anything but your opponent it tearing thru enemies with ease with level 1 units.