Before the update (with the exception of the Shuguki back-breaker, which you fixed quickly) the game was about combos, usually 2 moves, maybe 3. You would land a combo, then your opponent would have a chance to counter and you would engage again. It wasn't perfect, but I saw good players with every class.

Then you added the Centurion with his endless kick, stun thing, which he will do 5x in a row, and the Shinobi with his kick stun, chain, kick whatever long *** chain combos he uses.

You have made several classes obsolete. I haven't seen a Shuguki or a Raider in days, the Warlord, the Valkyrie almost none.
Get back to the basics,