Ventrua had put out a poison BV occultist for league start but I also like to play Assassin and it's more point efficient (though potentially still worse than Occultist), so I thought I'd share my work. All of these PoBs are built on top of Ventrua's PoB.

These builds will focus on incorporating alternatives to Profane Bloom as a priority.

Level as PConc, poison traps, or I can recommend cobra lash + tornado if you know what to do with league starting claw/daggers.

League Start Target lvl 88 Obliteration setup: https://pobb.in/XNIjBPtBrnHK

Post Start Target lvl 90 Asenath's Gentle Touch setup: https://pobb.in/t_a9weVGwRFp

Ramped up lvl 95 Dialla's Malefaction setup (basically Ventrua's build): https://pobb.in/SRAK2-Vi7pSJ

At this point you can just swap to whatever you want or just stick to poison BV, since this should farm basically all non-uber content.

Disclaimer: I'm not good at the game, there's probably a reason Ventrua picks occultist over Assassin. Asenath's probably sucks balls past the ~13mil DPS point and the tri-curse reap setup from the Rue spreadsheet looks better than this, so it would be a swap target if anything.