overhead is a nice conditioning option for the nagi stance, 0 on block, good hitbox, very nice range and on hit you can combo into b2 for a little more damage (or f2xxspecial if you hit your opponent on a jump in). If they start to try and punish the slow start up you can mix it up with 4 or if they are respecting the overhead you can mix it up with 3, or jip pressure. After each knockdown you can return to the stance for more keep away.
Between all of this you should be jumping and teleporting around like nobody's business, the best part of this variation is that you never need to land and can keep your opponent trying to guess where you will be next.
The staff normals are worthwhile using as well.
B2 is an excellent anti-air. You can hit your opponent out a jump forward from fullscreen, a neutral jump from half screen, or a jump backwards from jump in distance. This is very unsafe on block though, so save it for anti-airs or whiff punishes.
D+B2 is useful for when your opponent starts to get closer than half screen, at which point it should be your go to aa until your opponent is in uppercut range
B1 is a handy poke, despite its slow start-up, because it is plus 2 on block and can be canceled into df3 1 or df3 nagi stance as an overhead (which both lead into combos), or it can be canceled into the next hit of the string, which is a nagi sweep for a soft knockdown. I think this move will be most useful as an anti-run in tool, as the long, disjointed hitbox will cover the space and switch the pressure to your side on block. On hit, you can confirm to bf4 for a combo punish.
B32 is an excellent string because ends in an overhead, has no frame gaps and is neutral on block. Use it often and condition your opponent to block high and then you can mix it up with exbf4 for a pop up.
F42 is great for mixing up f43, it removes the frame gap so that the string cannot be armored through and is an overhead instead of a low. Condition your opponent block low and maybe try armor and then mix it up with the overhead or just don't do anything.
This is just my two cents I'm not that good but hopefully this helps someone.