I looked at morokei for the first time in a long while and noticed the enchantment and couldn't find anything about it online. The only mod i have installed that could be
Morokei (Mask) | Elder Scrolls | Fandom
Dragon Priest Mask by MyEpicRilla on DeviantArt
Konahrik (Mask) | Elder Scrolls | Fandom
WTF? - I lose my head when I wear the Morokei mask and the Archmage robes. : r/skyrim
Skyrim: How to Get Dragon Priest Masks & What They Do
Morokei (Mask) | Elder Scrolls | Fandom
Morokei : Elder Scrolls Skyrim - Skyrim Mods & More : Tips, Tricks, Cheats and Info!