afa

Did it mostly for myself, getting too tired of having to keep switching gear base on what spell I am casting.
Nothing new or pretty to look at.
Requires Dragonborn DLC

Adds a circlet that has all three Dragonborn DLC Dragon Priest Mask enchantments. Heavy armor, same armor rating as the masks, same weight, same Daedric tempering perk, but only takes up the circlet slot and worth 0 gold

Craft it at a forge with 1 iron ingot. Will only show up if you have all three of the DB DLC masks in inventory. It won't consume the mask.

Or type in console
help "dragon priest circlet"

Adds 7 rings with varying degree of spell cost reduction to all 5 schools of spells.
22%, 25%, 29%, 36%, 43%, 53%, and 100%
They can be disenchant separately to learn all 7 different enchantments. I can't figure out how to have all spell reductions enchantment to scale with skill level and soul gem, so made 7 fixed enchantments instead, they will not scale base on skill nor type of soul gem used.

All of them can be craft at forge with 1 iron ingot but they have different requirements for them to appear:
22% Need 5/5 Enchanter perk and Insightful Enchanter perk
25% All of above plus level 100 Enchanting
29% All of above plus level 100 Alchemy, 5/5 Alchemist perk, and Benefactor perk
36% All of above plus Extra Effect perk, and 120 Alchemy Mod (wear Fortify Alchemy gear)
43% All of above plus Necromage perk
53% All of above except requires 172 Alchemy Mod
100% All of above except requires 210 Alchemy Mod

They should show up if the requirements are met, haven't tested them fully yet. Could use a little better balancing too but whatever.

Or type in console
help "Casting"