mostly OS against tech/tech roll
hells fang->run up 22c/whiff 2c
DP->axe kick->jb rc 623c combo/whiff j.b
bk os burst bait
not really an OS, but god knows how many people burst on 3c/6c..
3c/6c->BK.. combo if no burst, 5b 6a 6d jd if burst
you need to delay the first 6d and delay the whiff j.d if you try to connect two 6d hits..
lazy alternative
6b 2c 6c bk dash 6d->jump->delay j.d->land->jump j.d->jump j.d->7belial->6d->jd->5d->CS
iirc this is the optimal combo for BK off 6b 2c 6c
6b 2c 6c bk->6d->whiff jd->214b->heavily delayed 214d->6d->jd (whiff or not, does not matter)->land->jump j.d->j.d->7 belial->6d->jd->5d->CS
2c 6c (watch for burst)->bk bb combo
another option, if you're confident in your execution is 3c bk dash 22c dash 5b 6a 6d jd etc. less damage, but 22c oki.