Seamus's Staff

[restlessgriffin]

Originally Posted by WhiteLily

Uncle Seamus, a delver-to-go, features a staff that has a $475 crystal ball built into it.

I'm assuming this improves its value for a power item, but I was unable to find a specific rule on adding items to weapons.

I'm assuming it is mounted on top of the staff. So can said staff be used to extend the wizards reach? Touch? Say if Seamus touches someone with the tip (which is a crystal, not previously living like the rest of the staff) does that touch still apply for casting a magic spell on person/creature/object touched?