You can punish Natsu's 66B with 6B, and you can use GS for mixups during her recovery.
I've turned the game off for tonight but try NSS b:A and GS A before you're sure something is guaranteed. NSS b:A has a sidestep so it can avoid some B moves and GS A can GI B moves as long as they aren't too fast. Depends on what transition it is though. Of course just cause NM may have an option to beat it doesn't necessarily make Natsu 66B a bad option. NSS bA and GS A are both unsafe high moves afterall....
Break A when her back isAny other Matchup must-knows, tack 'em on.
I'm not too sure but A:6 might have more range than NSS K. A:6 seems to have a small invisible tip range, it's especially apparent when you sidestep A:6 (since it's animation is like a 150 degree cone in front of Natsu). I would test the range difference to make sure this is a good option.Ah, excellent. I didn't know that, seems I might actually be using NSS against her now lol.
You can block the 4A+B on reaction. It takes some time but as soon as you see purple, just guard low. You can 1K and 4K of her out of it but I don't usually bother. Obviously, don't mistake the 2A+B the 4A+B. You can't guard that shit...and then you die. A lot.man i'm hating on this matchup, Natsu's 4A+B into PO is so damn annoying, i can't for the life of me shut this down, and PO B guard break into mixups. her 66A BE 2nd hit can be ducked but i find it hard to duck on reaction, it's so damn fast.
and those techtraps, if there's one thing i learn its never tech against Natsu.