PoE Witch, Hex, Simulacrum builds

I thought i was fairly capped for endgame content but I can't do past Wave 20 simul, uber atziri (oneshot by every ability...), ubers, Feared, and die once in a while in juiced t16s. Did a 80% deli but 100% is out of reach. Oneshot every 5 seconds in rank500 tota (lucky I'm finished with all tota challenges for the league). Any advice on where to go from here with 40~ divs? Original plan was Forbidden Rite but MBs are too expensive this league. Could I finish 40/40 with a BV, poison SRS, or similar? Doom is great fun and all but it can't do the content I enjoy d

Prices estimated by looking at or purchasing similar items listed 1 month ago: Budget Version ---- Stats listed in approximate order of importance for each slot Shield: 10c Life, Resistances, Block, ES, Dexterity We DON'T need spell damage Wand: 5c +1 spell is best, +1 chaos very much fine, +1/+1 is BIS for wand Get +2 Gems, Fire DoT muli, DoT multi, increased Burning damage, increased fire damage I think +1 gems should be most important, but a very high Tier 2 or better Fire DoT might be as good if you can't find any combinations above Nice to have: crit chance, cast speed, mana, mana r

Could use Despair or Elemental Weakness. Despair will add a bit of extra chaos damage to the hit and might work better against bosses. Need to figure out how I will get multiple curses out. Witchfire Brew, Bane, Vixen's Entrapment are all options. Probably going with Witchfire Brew though. Could use Flame Wall as an additional damage skill. Support with high Spell Damage Multipliers. (Searing Bond used as a Place Holder) Hexblast Ignite Calculation Hexblast - Archmage - Burning Damage - Deadly Ailments - Ignite Proliferation - Added Lightning/Combustion Dark Pact is used to Simulate Hexblas