Came across something interesting.
I'm not sure how many characters this works on, but I do know for sure it works on Kouma(came across it in some casuals).
If you're fighting a target whom is crouch blocking during deer taxi, if you are close enough to them you can cross them up with the A attack(the deer will jump over them and hit them from behind).
I can't seem to get the spacing right to duplicate it in practice mode reliably so I haven't been able to test what characters it works on exactly yet.