PoE 3.21 Crucible Brand builds

I am wondering what can I get to improve my defenses, I just feel like I get 1 tap on every mob. Other improvements are welcomed!

Intro A couple of weeks ago when I saw the video about using curse recovery mastery (recover 1% of life and mana when cursing a non-cursed enemy) with replica doedre's damning to be able to recover 1% of life and mana (x amount curses you are applying) with each hit, I wanted to make Storm Brand Indigon build with it. I have now killed all the ubers a handfull of times and I think I have gotten most of the build in to good shape, but I believe there is still a lot of room for improvement and I would like to discuss about ways to improve the build in this thread. The build [

Penance brand as hierophant using the reworked arcane surge on the cheaper side. Just sad that Penance brand is not much used and overlooked over the past several leagues, currently only 6 visible on the poe.ninja crucible ladder including me. It's often seen as a scaling build only used with great investment or with an aurabot. Bonus point, the mtx is wonderful and penance brand is one of my favorite skill. I understand it's hard to make it feels good and you can feel discouraged when you first try it but with a good understanding it's lovely to play (but beware you need to click a lot),

Posting Here as Well. Basically the interaction is this: When you take a hit with a 21/20 Petrified Blood, you take 60% upfront and 30% over 4 seconds. By taking a stunning hit with 30% Recoup (recover 30% of hit taken over 4 seconds), and a max-rolled Bloodnotch jewel (60% of hit recovered), you receive no damage from stunning hits. Taking the ES mastery which makes your Stun Threshold based on your ES and taking Agnostic to set your ES to 0, basically every hit stuns you. Therefore you are 'effectively' immune to hits. Adding the Immutable Force jewel (up to 1000% stun recov

Been trying to build a Storm Brand Raider for HCSSF because of the following synergies: - Onslaught gives MS and damage - Frenzy Charges double dip with More Damage and Cast Speed - Easy acces to Spell Suppression & Elemental Ailment Avoidance - Can path through Armour and Evasion nodes on my way to the Brand Nodes - Can path to a lot of Mana Reservation Efficiency However I seem to hit a ceiling in both damage and survivability. Especially Damage. I'm looking for a secondary skill that could boost single target, but I don't see it. Tried Lightning Spire