Gungnir (Toaru Majutsu no Index)

==Information==
The spear of the All Father and head of the norse mythology dieties, Odin. It was created first by Brunhild Eiktobel and then by Othinus. 
Although the lance is powerful by itself what makes it really valuable is it's role as a weapon of Odin, which lets the bearer control the power of the Final Rune (or, in ase of Othinus, her powers as a magical god (but only because she is a magical god modeled after Odin))
==Weaknesses==
==Powers and Abilities==
After studying the nordic legends concerning Gugnir Brunhild established that had the following characteristics: 
# The lance was made to be thrown.
# The lance would always hit its target once thrown.
# The lance could not be shot down or destroyed mid-flight.
# The lance would always return to its owner’s hands after piercing the target.
# That lance would destroy the symbols of human power.
But the first four were only added in the legends and Gugnirs original power is an offfensive Weather Manipulation. The fifth characteristics is the only one that the "real" Gugnir maintains, being able of destroying any weapon just by touching it. 
While Gugnir is a powerful weapon it's real strenght is the ability to transform the user in a magical god should they succeed in engraving the Final Rune in the center of the Earth. 
In the case of Othinus it also let her control her powers and turning her in a "real" magical god, but only because she is related to the concept of Odin.