[3.25] Bringer of Rain & Hollow Palm Slammer

Hi All,

I've been planning / designing a build for the Necro League and wanted some advice / input on potential changes. The PoB is below:

https://pobb.in/Ds83LWotAJ0Z

This is a Hollow Palm & Bringer of Rain Dex stacking Slayer with emphasis on frenzy & Endurance charge stacking. It's Offensive & Defensive stats are below based on the latest PoB I've come up with:

Offensive:
4.9 mil DPS with Sunder of Earthbreaking (Clear)
10.1 mil DPS with Frenzy of Onslaught (Single Target)
10 Frenzy Charges
Warlord's Mark on Hit
Stuns

Defensive:
35,000+ Evasion (80%+ Evade Chance)
4000+ Armour (65%+ damage reduction)
Blind
68% Attack Block, 65% Spell Block without Lucky
90% Attack Block, 88% Spell Block with Lucky
100% Spell Suppression with Lucky Mastery
Life & Mana Leech
10 Endurance Charges

Now for the gear and Gems:
We have to use Bringer of Rain & One with Nothing to fulfil the dream of a naked man punching people which limits us to the below gear:
Helmet
Boots,
Amulet,
Rings,
Belt

This limits us to 8 gem sockets, 4 of which are for our main skill in our helmet.
For the Sunder of Earthbreaking & Frenzy of Onslaught setup, I use Awakened Multistrike, Awakened Brutality & Endurance Charge on Melee Stun.

I've decided on Grace, Awakened Empower, Mark on Hit & Warlord's Mark for the last 4 sockets.

I'm also aware this build is very expensive featuring a lot of multi divine or even mirror items however I have gathered the majority of gear for it already and have been running maps with good success. The main problem I want to fix is the Life total of 3500.

If anyone has any ideas of ways to get more life without sacrificing too much DPS or defences please let me know.

Any help is appreciated.