Bladeless Sword

This appears to be a broken sword with no blade, just a hilt. The hilt can be held one or two handed. When the hilt is held by anyone who has a sword proficiency they will realise that the sword has in fact got a blade. The exact blade type can be varied by the user to any they require, by a simple mental command which is given at the start of the round.
Normal proficiency and class allowed rules apply, ie a thief could not use this as a two handed sword.
The blade is visible to detect magic & detect invisible and similar powers.
The Sword does not give out light.
The sword is +3 to hit & damage & can hit creatures on the border ethereal from the prime or vis versa, at no cross planes minus. Value 10000gps