two things that punishes EX PC in any situation are: reversal mp mgb, NON-Reversal U1 (you need to wait a tad after bison crosses you then start the ultra, or else the 1st hit whiffs and bison gets to block it).
after a knockdown, i like doing safe jump rh, os FP MGB to cover teleports, c.lp etc. If they teleport, fp mgb will tag them, if the ex pc you get to block and you can punish as mentioned above. if he does ex scissors he might be tagging you out of fp mgb, it’s kinda odd.
if they do any type of devils reverse from anywhere (even from full screen), if you wait til they do their punch and about to land, you can tag them with ex mgb for full hits into whatever you want.
the problem i find vs good dicts is that it’s incredibly hard to get in. he out pokes you all day and if you get reckless and jump in they will stuff you with s.rh all day.