丑御前の奥の手である大宝具。
天を衝く、巨大きわまる大神使である。

知られざる事実として―――
過去、一度だけ大神使は地上にその姿を見せている。
関東は鈴ヶ森にて顕現した後に丑御前と合一し、
源頼光率いる討伐軍に対し無尽の破壊をもたらした。

最後には兄弟たる頼光の手で丑御前共々討たれたとも、丑御前と分離後に暴走を続けて関東平野を蹂躙するも相模国は足柄山にて主馬佑坂田金時に討たれたとも（カルデアの記録によれば丑御前と頼光は同一人物の別側面と解釈されるため、前者の可能性は低い）。

The great Noble Phantasm, Ushi Gozen's secret weapon. It is a colossal divine messenger capable of piercing the heavens themselves. Many may not know, but this divine messenger has actually set foot on Earth once before. After manifesting at Suzukamori in the Kanto region, it merged with Ushi Gozen and unleashed endless destruction upon an expedition led by Minamoto-no-Raikou. And while it was defeated alongside Ushi Gozen by their brother Raikou, it continued to rampage across the plains of Kanto and Sagami Province after separating from Ushi Gozen. However, it was ultimately defeated by Sakata Kintoki at Mount Ashigara.

(According to Chaldea's records, however, Ushi Gozen and Minamoto-no-Raikou are different aspects of the same person, so this story is unlikely to be true.)