Deicide
Keyword
AXZ Episode 10[1][2]
Throughout the world there are numerous legends passed down of "God," a being of superior power and status. Likewise, many legends also exist regarding how this being ultimately met its end.
Although details remain unclear, talk of a deicide power has been brought up as potential countermeasure to the "Power of God" that the Bavarian Illuminati seek to obtain.
Maria believed that Hibiki's Gungnir might be the key based on the fact it defeated the "Power of God" prototype "Yohualtepuztli" in episode 2. However, as Tsubasa remarked, there are no generally known legends of Gungnir having that type of power or ability.
The key to unlock the secret of this mechanism almost certainly lies within Germany's secret documents from the previous world war. However, all the data that the Kazanari Agency obtained, as well as the documents brought from Valverde, have been reduced to ashes.
The Germans struggled with the limits of eugenics as they sought to obtain the "power to kill a god," meanwhile Japan focused its research on the Gungnir, the piercing spear, that they received from them.
Perhaps it is not Gungnir itself, but rather "something" that connects these two threads together is the true "God Slayer," or maybe...
AXZ Episode 11
In the end, the source was neither Hibiki or Gungnir. Rather it was the concept of Gungnir, its very existence having become warped after thousands of years through the power of words.
It's different from the Symphogear, which uses the power of song, and rather is classified as a "Philosophical Armament."
It does more than simply overpower the seeming immortality of divine forms. In fact, due to the special property of Hibiki's armed gear, "reach and connect," it can deliver a blow to every target throughout all parallel universes at the same time. This leaves no opportunity for one version to become a scapegoat for another, it is a merciless spearhead that pierces through them all simultaneously.
XV Episode 0[3]
In the end, the source was neither Hibiki or Gungnir. Rather it was the concept of Gungnir, its very existence having become warped after thousands of years through the power of words.
It's different from the Symphogear, which uses the power of song, and rather is classified as a "Philosophical Armament."
It is the ultimate weapon against the otherworldly principle of Divine Providence, which normally is able to reverse any damage received.
This makes Tachibana Hibiki's fist a deadly and immediate poison for the divine beings who have stood in humanity's way countless times.
"The power to slay God lies in the hands that hold us together."
