I'd just like for the hand to have an inventory that can support up to ten pounds. That way the hand can pick things up and transfer them and such.
And to be able to interact with the environment. Opening chests, opening doors, closing doors, pulling levers, pushing buttons. Basic stuff you'd assume the hand can do.
I'd also like the hand to have the "fly" ability since it floats.
Other than that, I don't care so much about all the combat stuff. Whatever's interesting and balanced is fine with me.