tech trap. 22b c2b g c3a: 3b a c1b
: 3b BE c2b
might also work with CH [A+B] but idk how to operate training mode yet lol.
also, it does really work unless the opponent is close to you after c3a. i know 22b makes them slide backwards at the end of the combo, making the trap possible
edit ...
well i noticed something with B+K. is that sometimes it has "clean hit." bonus for signature moves. maybe that has something to do with it?
also .. her a+g BE can be done by pressing all 4 buttons at the same time. like GABK