Is poison fixed?

I remember some time ago people saying that poison is not good due to some enemies being comepletely immune to poison damage. I have the rift-beast dagger dropped for some time now and I’d really want to use it and I have a build ready to go on my planner.

Should I play it? (FYI my build is focused on poison and necrotic damage)

Hm. My poison falconer in S4 never met such an enemy so it should be good

No enemies have immunities. Some enemies have resists but like the player, these are capped at 75% & vulnerable to pen, shred, etc.