The Tiefling's Prehensile tail allows you to retrieve an item as a swift action, but its not supple/ strong enough to wield a weapon or ready a shield with it.
1) So can the tail hold a weapon you could use in close fighting (longsword, dagger, etc...) while you wield a polearm (reach weapon) with your regular weapons, and switch? What action would it be to switch a weapon?
2) The tail cannot 'wield' a weapon. But, could you use it to balance a polearm (reach) with your primary hand while wielding a shield with your off-hand?
