What do I do against Chang RCing the spinning ball over and over again in the corner? It’s pretty cheesy… I’m using K/P Blanka and Sagat btw.
Chang’s ball acts like a projectile during that move, so whatever frame advantage that normally comes from parrying/JDing a poke, you won’t get. But you can still recover from a parry/JD faster than you would from blocking, so if you can parry/JD, you can counter with the best poke you have when the invincibility has worn off. For obvious reasons, P/K-Sagat and Blanka can manage themselves better than most characters in this situation, because it’s ideal for Chang to do the ball at max range to avoid any surprising DPs and (most) ACs. Just be wary that Chang can still cancel the ball and throw you off.
P-Blanka with full meter particularly handles this nicely, as he could simply block the first few ball swings, parry the next and go right into his super. But the timing’s very tricky.
BTW, Chang’s got a slide, so anybody who thinks they can shoot a projectile, save for Athena’s, and rush him for free has never fought a good Chang in his life.
Agree. 
U will have a hard time if get into corner by chang.
U must be good in Parrying/JD if u using P/K.
Even Blanka’s HP electric can be parry/JD ~ 10 times, it is much easier to parry/JD Chang’s spinning ball than Blanka’s HP electric.