Unique game but not for everyone
You get to play through short rogue-like stages where you build your character of choice, then take that character into other modes for PvP/dungeons using the exact build when you finished the rogue-like stage.
Downside is due to the nature of the game being a roguelike, there is no auto. So far my progress in game has effectively only been limited by my time. You can get level up materials in most stages, and by leveling up, you make your unit’s base stats in build higher, resulting in a stronger finished unit. A build run takes between 5-15 minutes I’d say, and each run uses about an hour and a half worth of stamina regen. However, you can refill your stamina with ads or in game currency, and for a low cost of said currency, you get enough stamina for 6 runs. I could literally play all day and not run out of stamina.
All in all, if you want a game that you can auto, or a game with a new deep story, it’s probably not for you. But the gameplay and teambuilding are interesting, so if you like games like that, there’s no harm in trying