Gear Review
With 4489 Penetration from full Divines, 5948 Penetration from Elemental Drain, 1487 Penetration from one piece of Valkyn Skoria and another 5028 Penetration from seven Light Armor pieces, you should be covered for most things in Vateshran Hollows.
False God's will offer guaranteed sustain and sometimes even with it sustain may be rough at times. You need to have this set active on both bars at all times as your most expensive skills tend to also be on the backbar as opposed to front barring it like you should with your Mother's Sorrow set.
The Maelstrom Inferno Staff does not have to be Perfected and if you have a spare Maelstrom Inferno with a Prismatic enchantment on it instead of Berserker, there are times where you can swap the staves for added damage on Daedric/Undead adds or bosses.
Mother's Sorrow will be active on the frontbar as you spent most of your time on the frontbar and not the backbar. The critical rating it offers will make up for the lack of The Thief Mundus Stone as you're running The Lover.
Ring of the Pale Order is absolutely essential not for just your own tremendous healing in this solo arena but also frees up one skill slot that would have been taken up by Critical Surge or a different healing/shield ability you may have considered.
Skills Review
Your main spammable to cast on all encounters will be Force Pulse. It's a more attractive choice over Elemental Weapon or hardcasting Crystal Fragments due to its innate cleave where it can bounce from the initial target to other enemies.
Crystal Fragments should only be casted once it procs off of your other abilities.
Endless Fury is your execute ability to use once targets are below 20% Health, a Crystal Fragment proc should be prioritized if it appears during an execute phase.
Bound Aegis as both a passive and active ability is quite useful. Passively it adds Max Magicka to your resources and actively it can complement any Blocks you need to do against heavy attacks or other incoming damage should you need it in Vateshran Hollows.
Inner Light is mainly a passive ability to slot for even more additional Max Magicka and guaranteed Spell Critical through Major Prophecy.
Arguably you could do Twilight Tormentor if you'd like to do a Pet Sorcerer spec however the Volatile Familiar and Twilight Tormentor tend to sometimes die in Vateshran Hollows and depending on your setup leave you not much room for skill slots as a pet has to take up one slot on both the front and back bar.
Speaking of the backbar, your main Damage-over-Time abilities and buffs/debuffs are present on the backbar.
These consist of Boundless Storm, that not only damages nearby enemies but also provides Major Resolve boosting both your Physical and Spell Resistances.
Elemental Drain is needed as a source of sustain (Minor Magickasteal) and Penetration.
Mystic Orb and Unstable Wall are two great AoE skills to slot. The Maelstrom staff's boost to your Light Attack damage comes through setting down a Wall on your targets while the Mystic Orb despite the post Update 30 nerf to it, still is one of the best single-target and AoE damage skills available in The Elder Scrolls Online.
Channeled Acceleration is your source of Minor Force and depending on how often you need to move or not move, you can cast Barbed Trap instead for the Minor Force although this depletes Stamina instead of channeling with Magicka to pop off Channeled Acceleration for a much longer duration.
Craft
Warfare
Fitness
Champion Points Review
To see what each Champion Point does, hover over or tap each one shown in the allocation chart.
Backstabber is not a very friendly Warfare Slottable as Vateshran Hollows is not group content. If there are times when you think you can get away with this Slottable depending especially on the boss fights, you could certainly try to min-max for it but for most people not scorepushing it won't make too much of a difference.
Introduction (Update 31, Waking Flame)
This Magicka Sorcerer damage build is intended for players to more easily tackle on the veteran solo arena known as Vateshran Hollows. If you want to farm the solo arena for gear on a Magicka Sorcerer, this build can help you. Should you wish to go for the No Death, No Sigils and Speed Run (Spirit Slayer), this build will serve that purpose as well.
As an added bonus, you don't need to swap out any of the gear or skills during the run unless you absolutely need to.
What this build cannot do is offer high scorepushing capabilities.
Recommended Races for this build are Khajiit, Breton, Dunmer, Altmer.
Recommended potion for this build is an Essence of Spell Power.
Recommended food for this build (depending if you're Breton or not) is Ghastly Eye Bowl or a bi-stat (Health + Magicka) food. Otherwise Witchmother's Potent Brew or Clockwork Citrus Filet is fine.
Recommended Mundus Stone is The Lover, otherwise please check your Penetration value with the resistances of everything in Vateshran Hollows.
For gameplay and the video showcasing this build, refer to the video above.