There are Three Sets of Dragon Balls, if the creator of a set dies, then those dragon balls disappear.
You can only wish for the following things:
~To become your Super self
~To have your Helper be able to train
~To have no more than 350PL added
~To have no more than 300MP added
~To get $1500 dollars or any one item
~To be transported with one other person to any planet you want
~To wish a destroyed planet back with all the people back on it
~I am also open to suggestions, just email me for approval before posting it on the board.