Uh.. no. The ay being used in chinese version is the 3rd raikage, who has the same name, but is a completely different ninja.

4th raikage ay only became good AFTER his skill breakthrough release this month. Looking at the current breakthrough prices.... he is still a poor investment for the cost.

Roshi is very good to have in the long run, he'll get stronger when obito stops blitz teams being everywhere.

Han is meh for singles. He does NOT counter blitz teams, as it doesn't work on barriers, wb asuma, and does not remove standards from lightning armor. He's a lot more useful in ranked/gnw however.

SSN sasuke is a great blanket check against f2p meta teams.. but he falls apart extremely badly vs healspam.

4th raikage ay is bad in the sense that buffing him up does not yield as good results as buffing up your mb due to his random targetting. Running both him and a lighting armor mb get less done than simply giving your mb a 3rd buffer. He'll be good after his breakthroughs.. but that is way into the distant future, at likely a very high cost. (But if you need something to kill the coin cat at lower power than otherwise, ay is your ticket.) Ay would be great if he is any element but lightning.. but alas, he is competing with the one unit he cannot beat for the slot.

Those teams die horribly to healspam; is free food for roshi teams, and does not even do that well vs sn kk teams or mabui 1010 teams because you have no dmg output yourself.

As a specific counter team for spacetime playoffs, it can work.. but as a general use team? It is not effective at all. (And even then.. you can still lose to a slot 1 iruka against a blitz team who has higher slot 1 init.)