Not to mention the difficulty jumps too much. Up to 3rd I pretty much dont lose any hp and at 4th suddenly everyone except tank gets annihilated in 3-4 hits tops...
I get it is based around having a team consisting of monsters with appropriate element but asking majority of players to have bunch of additional monsters ready with proper level awakening etc is just crazy. I seriously doubt even the biggest spenders have much else up to snuff except their main team.
Additionally drops sucks, chances recharge is too slow and most things in shop are too overpriced. I wont even be able to save enough for one piece of the 18* monster because of the reasons mentioned above.
The idea seems nice but the execution is simply terrible and needs a lof of adjusting.

All in all it seems to me they have a lot of problems with monster damage and defense balancing.
In champion tower, the system made teams are way too strong compared to regular players. I stayed at full hp pretty much until I met bunch of ai teams and my team got wiped out halfway through the floor which I could easily clear if there only were player's teams or they balanced it properly.
Same thing with factory, I am sitting at 360k OA and even with full dmg team I cant clear the 250k requirement one because the one for EQ has too much attack power and the one for money has too much defense...