Conveniently Reusable Throwing Knife

Select a weapon that is in the hands of the user and deem it "Reusable." When this weapon is thrown by the user, it will keep its natural stats when it hits a target, and upon doing so, will deal damage, and then retract back into the hand of the user, dealing its damage on the way back. If the weapon is intercepted, a bonus action may be used to attempt retracting the weapon a second time. If not retracted, the spell will end.