Standard blockstring: 2A > 5B > 2B > 3C > Jabaki
And then if you condition them to think that you're done, you can go for air grab when they jump up or another 3C when they run in.
Plus, you can throw in 214D anywhere for added mixup.
Also, I dunno, he builds up heat so fast because it's pretty hard to actually get into his BnB if your opponent knows the matchup well imo. So might as well save it for later.
Pretty sure you can't slash it on hitconfirm since it grounds them. :V
You probably threw the special with the orb out.