Viy isn't exactly a tier 0 deck but the card still needs to be nerfed.
No. Viy is in that spot where 1 more nerf kills the card or one more buff makes it op again. Viy in in a good spot right now. If you still can't beat the Viy decks then the problem isn't the card, it's the decks you play.
Obviously not EVERY deck should be able to beat Viy just like there is no deck that can beat all other decks. I've been playing Viy at rank 1 trying to hit pro with it (cuz that's what i do every season then i stop with comp) and it's not easy at all, i win 2-3 then lose the next 2-3. The only way to hit pro with a Viy deck is to get lucky and get in matches with decks that can't handle him.
So yeah, not OP by any means, i still lose a ton of games with that deck.