Staff and Focus
It’s PvE, you can literally play with anything unless you are raiding. Staff is especially good for tagging mobs in areas where many spawn for loot—orr for example.
Any situation where you find your self in need of survive-ability take a focus and match it with scepter.
Other than that Longbow/GS are typically better for almost every situation, I wouldn’t bother too much with staff/focus.
Personally not a fan of either weapon. Not a helpful post, I know, just didn’t want you to think you were being ignored. Also a bump so someone else will see it and maybe help ya out.
Focus is nice to use 5 and then swap it out to what you actually want to use. Also having it on swap on the hammer build can be nice for blocks if you really need them.
Staff.. uh.. no.