Ok...
First off here's the equipment list and bear in mind I built this specifically for Legendary:
Ebony Mail
Mehrune's Razor
Vlad's Lucky Dagger
Zephyr
Ahzidal's Ring of Arcana
Targe of the Blooded
Amulet of Talos
Miraak's Staff
Optional:
Aetherium Crown
Jagged Crown (exploit or never finish quest)
Bloodskal Blade or Longhammer (dump daggers)
So that leaves only gauntlets and boots to enchant at your discretion.
I use Talos' Blessing, Lord Stone w/ Steed Stone on Crown, Agent of Mara
Schools of Magic:
Destruction: Adept cost reduction, Augment Flames 2/2, Intense Flames, Rune Master
Alteration: Apprentice cost reduction, Magic Resistance 2/3 if Breton, 3/3 if not.
Primary Spells- Ignite, Poison Rune, Frenzy Rune, Fire Rune, Wall of Flames
Primary Shouts- Slow Time, Cyclone, Unrelenting Force
Enchanting optional, smithing dependent on what difficulty you're on. Alchemy goes to the left up to Concentrated Poison. I only make one potion with this build and it's Weakness to Poison/Fire/Frost (Bleeding Crown, Ice Wraith Teeth (hard to come by) and A. Longfin). I generally Hotkey Zephyr to the left and the poison to the right. That way I can approach a group, poison Zephyr and go Slow Time. You can pump 4 poisoned arrows into 4 different people/things if you are quick enough, then I switch to Targe of the Blooded/Miraak's Staff. Lay down a nice field of tentacles, switch to Wall of Flames or Poison Rune in the the right hand. Or Frenzy Rune them in the tentacles and laugh. If they try to get out, bash them with Targe and make them bleed too. Tentacles are poison, armor is poison, some of them got a dose of weakness poison to boot. Unrelenting Force pushes them back into the tentacles if need be. Or you can light em all up with Ignite and Force them into a pile. Lots of options. I carry the two daggers for when I feel like dual slashing. I also make Poison Albino Spiders but it's totally optional. I barely use them tbh.
If you want any further details feel free to ask. I may have messed up a few minor details and names but I don't have acces to my build atm.