I noticed that against Asta's that like 6K a lot after blocking, her A+B auto GI works wonders. It may do very little damage but it does lead to some mind games and a bit of a soul crush game with 4B+K. Just try not to overuse A+B too much or they might catch on.
I found some fun wall combos.
66B -> (Wall) -> 6A,B -> 236236A,A -> 236B 4
Without the rip out is 90
With the rip out is 94
On counterhit those go up to 97 and 101
I haven't been able to get the 236236B to hit or the normal 236B:4 just.
66B -> (Wall) -> 6A,B -> 236236B:4
101 damage
66B ->...