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
Steam Workshop::Morokei Mask Magic Armor Tweak
Wearable Skyrim Dragon Priest Mask with stand by Make It Lab | Download free STL model | Printables.com
Morokei - Dragon Priest" Sticker for Sale by bobattackman | Redbubble
Best Mage Gear in The Elder Scrolls V: Skyrim | High Ground Gaming
Morokei Mask at Morrowind Nexus - mods and community
Morokei Mask by Corinoch -- Fur Affinity [dot] net
Steam Workshop::Dragon Priest Masks Unleashed
Morokei Mask at Skyrim Special Edition Nexus - Mods and Community