Translation was done by WaifuHunter. Make sure to thank them in the comments!
I hope Beast class Amaterasu appears in FGO. That's gonna be a wild fight.
Translation notes:
(1) Explained to be the magical energy only in the Age of Gods. Which is also what the ancient gods like Golden Fox were made of. The Black Barrel is also made of this.
(2) She's roasting Tamamo's waifu act. Pretty savage
(3) Wakemitama/Bunrei is a Shinto term for clone spirits of a kami, therefore calling Tamamo a "part" or "an aspect" of Golden Fox is inaccurate. This clone, while not 100% identical to the source god, is similar in term of powerlevel. In the context of nasuverse, the term was expanded to be used to call pseudo servant Ishtar, Stheno, Euryale, Female Quetzacoatl. https://en.wikipedia.org/wiki/Bunrei
(4) 人類悪, basically calling herself one of the Beast class candidates.
(5) Referring to her Mystic Code resembling Golden Fox's attire. If TM went with the idea of fully naked Golden Fox design then this line is alot more lewd since she will fight BB while wearing basically nothing...
(6) In Extra matrix, it was 100 英雄 (eiyu - Heroes) but here Nasu wrote 100 英霊 (eirei - Heroic Spirits)
Golden Fox speaks archaic Japanese, with a very majestic, intimidating voice, yet alluring at the same time. That caused me a lot of trouble and this is the hardest thing I ever tried to translate. I'm still unsure if I got everything right, but it's all I could do. I had to ignore the archaic unfortunately, because trying to cover it with archaic English will only make it extremely hard to read.