As Asuka:
As Katarina:
- u/f+3+4 has good risk/reward against Asuka since it is only -10, giving Asuka a 7 dmg punish, but gives Kat ~40 dmg with the guaranteed u/b+4 follow-up. Asuka can parry the second hit of u/f+3+4, so chickening it is recommended.
- d/b+1,2 beats every move from a minus ob transition to HAR (4,4,4F, 3,3,3F). You cannot even crouch cancel into block fast enough to block the d/b+1. The move crushes and punishes HAR 1, and is faster than any other standing HAR move (you'll get CH). It can't be low-crushed using HAR u/f+3/d/f+3 since it is a true mid (you'll get floated). Of course, if the Asuka knows and is using this frequently, simply bait it out by not transitioning to HAR. You will either get +7 if you block the d/b+1, and if they're sharp enough to hit-confirm and not do the follow-up, or duck and launch if they commit to the follow-up.
- d/b_1,2 loses only to HAR 4 from a plus ob transition to HAR (d+2,F, b+1,F). You can crouch cancel into block in this situation.