Throw a Tormented soul on that staff for sure, since you are gonna be a close range Mage you can probably enhance your melee a bit anbd if you are using lightning strike you will probably at some point find yourself needing to melee with that staff since it will usually be cheaper to bash somebody with a stick than cast a spell, got to have a plan B.
Yeah Boulder Dash sounds kind of cool, I have not crafted it since the only crafting I have done so far is weapons ( Bows and 2Handed Swords nearly every level up) and Armor improvement ( when a new better suit comes along).