SSasuke is a good ninja but not a game breaker ninja. He needs a strong lineup to be of use and he is no tank.

If you take a look at the space time battles you will see that SSusanoo is almost never used, the only times ive seen him is when players wnat to test a lineup aganst an opponent.

The current meta offers ninjas who are much more versatile with better skill sets such as Roshi, sailor, Minato jonin, 9 tails naruto or kage tsunade. Although SSasuke is very expensive he is not a ninja that will alow you to win in PVP.