This universal school ability reads as:
Hand of the Apprentice (Su): As a standard action, you can
summon a ghostly hand to do your bidding. This functions like
mage hand with the following changes. When summoned, the
hand can draw a weapon on your person as a free action. The
hand can be directed to make a single attack against a foe within
30 feet, using your base attack bonus plus your Intelligence
modifier for both attack and damage. The hand does not
threaten foes and does not make attacks of opportunity. You
must concentrate on the hand each round or it winks out,
returning any item held to you before it disappears.
I had some questions: is the wizards limited by size? I assume it limited to a 5 pound weapon but can a small wizard carry around a medium weapon and use that to bash people? Can they use any weapon or only weapons they are proficent in? Can you trip or disarm using this weapon? If so, how do you calculate your CMB? Does it have to be a one handed weapon? Can you use a ranged weapon? Can i use this hand to fire a bow? What about a composite long bow what "strength " does it Pull at?
I could probably think of more questions this ability difenatly could be written with more clairification. my suggestion:
Hand of the Apprentice (Su): As a standard action, you can
summon a ghostly hand to do your bidding. This functions like
mage hand with the following changes. When summoned, the
hand can draw a one handed melee weapon on your person as a free action. The hand can be directed to make a single melee attack against a foe within 30 feet, using your base attack bonus plus your Intelligence modifier for both attack and damage. The Wizard need not be proficent in the weapon to weild it with hand of the apprentice. The weapon can be of any size catagory (a small wizard can weild a medium sized weapon for example) but the weapon must weigh 5 pounds or less. The hand does not threaten foes and does not make attacks of opportunity it also cannot be use to trip, or disarm a target. You
must concentrate on the hand each round or it winks out, returning any item held to you before it disappears.
This would make this ability scale up usefull at higher levels as the wizard can invest the money in mithril weapons. :)