Void Battery SST Build Theory

This is the time of the league where I go off the deep end and start thinking of weird shit to try.

Shield skills have caught my attention recently due to the fact that you can have a scaling weapon equipped (like Dreamfeather) for attacks without actually using it. Void Battery seemed interesting to me since it gives huge scaling based on Power Charges, which could be shifted to attacks with Crown of Eyes. Plugging in just gems and uniques into a reasonable tree put me at around 3.7m Shaper DPS, which means with proper investment I'm expecting this to be a reasonably well rounded character. However, I'm not that familiar with Evasion or SST characters, so I could use some help filling out offenses and defenses.

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Mandatory Items:

-Void Battery (large % spell per power charge)

-Crown of Eyes (shifts spell damage to attacks)

-Hrimsorrow (we're cold converting to get the huge power bump from Hatred; this could potentially be replaced by high conversion rare gloves since we have a cold mastery available)

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Likely BIS Uniques:

-Emperor's Vigilance (default Unique shield for most shield skills, might be able to have a better character with a high invest Rare)

-Badge of the Brotherhood (a lot of Frenzies = a lot of damage, also makes our elusive better. Likely not worth dropping due to the quantity of charges gained)

-Auxium (attack scaling per power charge, not necessary but gives about 25% more damage and some ES to go with Ghost Shroud. Probably the least useful Unique here)

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Defenses:

I'm picturing this as a 4-4.5k life 1.5k ES character with 30-40k or so Evasion and max Suppression. This likely means a bit more sacrifice will be necessary on the tree, but with so much DPS potential unrealized even at 3.7m this shouldn't be much of a problem for our damage output.

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Concerns:

-Resistance could be tight with only rings and boots available. Dropping Auxium is an option to free up a slot, but it's at the cost of 20% damage.

-Besides the 10% on hit from marks, additional Frenzy generation will be needed (I think) to keep it up during bossing. Not sure what to do here other than chest implicit + 100% charge duration mastery, but this is a huge cost since it denies the non-curse aura slot.

-Getting a proper amount of flat life will be challenging with only a few rare slots being available. Pushing even 4k life might be difficult.

-Big hits that bypass Glancing Blows will just kill us since they go through the energy shield, so that's not great. We are crit immune, so that helps.

-Even with Grace and a better tree, getting up to 30k evasion and max suppression will be difficult.

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Pastebin:https://pastebin.com/bryAUkBL

(WIP, not currently wearing anything other than uniques listed)

I'd be happy if people went in and tried to round it out. I do plan on making this character, especially since the items are very cheap this league.

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Unrealized damage:

-+1 PC helmet (~20%+ DPS, should be better than any enchant)

-Chest implicits (hatred scaling, non-curse scaling)

-Frostbite with increased effect on hit (currently just default gem)

-Cold Watcher's (pen)

-Jewels (likely life, attack speed, crit multi. could try to squeeze resists here also)

-Level 21 gems

-Ancestral protector (does this work? it doesn't show in PoB but people are using it)

-Things I don't know about (skill issue)