again, i dont think its a good idea, to balance cards on the basis of how powerful they are in the hands of false gods. i agree, that false gods are too powerful at the moment. before the last ai update, false gods have been ridicilously overpowered, but you could still beat them, by exploiting their weaknesses and better play. (for example get them to waste their explosions/pulverizer uses on your bonewalls and thus protecting more important artifacts).
but after the last ai update some of them are nearly impossible to beat. i cant remember, ever winning a match against divine glory (if thats the one with the flying morning glorys) or the one, that just nukes you in the first few rounds with unstable gas. but thats just a matter of balancing the gods not a matter of balancing the cards.
if you want to figure out if cards are overpowered or not, i would suggest, comparing them against top 50 decks.