The Elder Scrolls Wiki would seem to disagree with you on the subject of enchanting the Jagged Crown. Then again, they could be talking about enchanting it before utilizing the glitch, so maybe it is enchantable. That being said, I forgot that you can wear it with Dragon Priest masks, so wearing it in conjunction with Ahzidal (for those with Dragonborn) would be pretty effective. Sadly the build author makes no mention of this. Even if you didn't have Dragonborn, you could wear Otar instead of Ahzidal and in conjunction with being a Dark Elf you'd only fall 5% short of the Fire Resistance cap in addition to 30% Shock and Frost Resistance.
The Elder Scrolls Wiki would seem to disagree with you on the subject of enchanting the Jagged Crown. Then again, they could be talking about enchanting it before utilizing the glitch, so maybe it is enchantable. That being said, I forgot that you can wear it with Dragon Priest masks, so wearing it in conjunction with Ahzidal (for those with Dragonborn) would be pretty effective. Sadly the build author makes no mention of this. Even if you didn't have Dragonborn, you could wear Otar instead of Ahzidal and in conjunction with being a Dark Elf you'd only fall 5% short of the Fire Resistance cap in addition to 30% Shock and Frost Resistance.