PoE 3.23 Affliction, 3.22 Ancestor Fire, Bossing builds without Mageblood

This is my league starter Necro build for Affliction. I've been playing pretty much exclusively minion builds since Delve league. I've put together successfully, almost every SRS variation out there (I'm sure there's more variations that I haven't thought of, but every conversions at least - Fire/cold/light/chaos/phys/pop). This is built around the current new corps spectres auras. IMO, this is getting nerfed/removed next league. Just insane how powerful these corpse's are. I've also decided to stack some MF gear, since this is THE league of MF. Surely, I've sacrificed some damage in-li

TLDR: I'm not sure where to spent currency and have hit a wall in some content. I have a budget of 3 div and 1400c to upgrade the attached POB. Any advice is more than welcome! POB link: Summary: Hello! This is my first league, and I used a guide to clear 100 maps. At this point, I've hit a content wall in bossing. A Maven-empowered conqueror or delve 200 crystal king are running me over. I'm getting better at dodging, but don't think mechanics will carry me through ubers yet. Which brings me to a few questions: 1.

One of the tankiest mappers I've made. Easy 100 90 All Resistance+ 82% Physical to elemental 74% chaos res Petrified Blood + Massive Life Recovery + Life on Block Shield Glancing blows 74/75 block+ Life on block 70% Reduced Crit damage taken Stun Immune, Shock Immune, Freeze Immune, Ignite Unaffected Warrior's Tale+ Both life recovery Tattoos= 60% recovery rate (4000 Life in hideout) Chieftain Explode+ numerous explode tattoos= great clear (Good at 1 shotting wave 30 delirium bosses if your lucky with overlaps) Psedo100% Flask uptime Tattooed every single node Pretty bad single

Hello There, This is the first league where I have played any type of summon builds, and before the launch I was recommended to try Poison SRS. I have followed most builds guides and similar builds on poe.ninja and with my build I am able to clear most of the content in-game without issues except Uber bosses which I die to mechanics. I am at a point where I am not sure what the next steps would be to improve this build in any terms of damage or survivability. Any tips or suggestions would be appreciated. Here is my character for reference: [