level 155 and i still cant complete more than half the insanes without many revives and there is no way i can get even 40k without revives/gem refreshes lol When I first knew that panzers and horsemen were out of the game when i started(at least tried the last 2 horseman stages) I knew I would have to just grind out the months until I got many different hp beasts to use in a mono color and damage reduction team... I only have 2 hp beasts, red and blue and a whole bunch of random other necessities. I want 7 ad 8*s Anyway with the new output of potential dual colors, damagewise, newer cards can always outshine the old ones... Just takes a lot of time. Other than that, stacking hp with higher star cards and using revives is always a thing.
Many games use limited time stuff and even in real life. Why dont they keep making that old toy or is some company not here(i cant think of any examples right now). I wasn't born early enough? And sadly, not all phone games are places of fairness. Play a sandbox game if you want fairness.