Thanks to Zana for help with both the textures and basically hand-holding me through troubleshooting and converting Nidhogg's Eye from a diffuse to a mask, as well as general advising! Also thanks to Jammer for testing and discovering that my file wasn't possessed by eldritch tech demons.
Mine eyes have partaken of a thousand years of pain–a pain which I shall bestow upon thee.
Don't worry Nidhogg, this eye has definitely given me a lot of pain.
Harness the destructive gaze of Nidhogg with this fancy staff! Replacing the boring ole gem in the [Seeing] Horde Rod with Nidhogg's very own eye should boost your spells' powers a hundredfold!
Unfortunately, it won't, but it'll look cool!
Fun Fact: Trying to import this mod into the final release of TexTools ended up revealing an issue with advanced import. Hooray.