My simplest build yet. The Eternal Flame perks just 2 skills and maxes out at level 25. Master difficulty is no problem at all so you might want to play on Legendary if you’re looking for a challenge.

The Eternal Flame

Introduction

No one could possibly have suspected that behind the gentle eyes of this quiet and unassuming priestess lay a dark secret. A horror of such immense, raw, destructive power it could easily be the stuff of legend and fairy tales.

Race: Any (I went with a Breton female to fit the roleplay)
Stat Spread: All Magicka
Stone: The Apprentice
Blessing: Talos
Perked Skills: Destruction and Alchemy
Weapons: None
Spells: Flames, Firebolt, Fire Cloak and Fire Storm
Gear: Circlet of Major Destruction, Ring of Eminent Destruction, Amulet of Talos, Red Robes.

Required Quests:
The Horn of Jurgen Windcaller
The Only Cure
Destruction Ritual Spell

The Build

The Eternal Flame uses Alchemy to turn the Become Ethereal shout into a near-permanent state of invulnerability, while simultaneously turning the passive Flame Cloak into a devastating weapon. And as a final endgame feat, she twists her own body into an eruption of pure flame to incinerate what’s left of her already charred and dying enemies.

Potions

The Focus of Serenity (Fortify Restoration) – Any combination of Abecean Longfin + Cyrodilic Spadetail + Salt Pile

Use:  Drink before equipping the Amulet of Talos, Fortify Destruction items, or activating the Talos Shrine or the Apprentice Stone, to reduce shout cooldown, reduce spell cost, and increase magicka regeneration, respectively.

The Harmony of the Mind (Fortify Magicka) – Red Mountain Flower + Tundra Cotton

Use: Drink whenever a spell is beyond your natural abilities.

The Rage from Within (Fortify Destruction) – Glowing Mushroom + Nightshade

Use: Drink before activating any destruction spell to multiply its power.

Gameplay

Combat is extremely simple. Pop a Destruction potion, cast Flame Cloak, activate Become Ethereal, and run right into the thick of it. When Become Ethereal is about to run out, charge up Fire Storm for a final blast of death. If your enemies aren’t all dead, no problem, just active Become Ethereal again and watch as they burn to a crisp.

Gameplay Demo Video

Roleplay

I played as a quiet and gentle priestess who has a violent rage hidden within. When threatened she had the terrifying reaction of exploding into flame!