Kulemak's Invitation - Boss fight pillars siphoning life

Hello, I found a Kulemak's invitation and started the boss fight.
After stealing more licht powers and reviving the boss the third time, eveytime I fight him the pillars in the room keep siphoning my life, and can't fight.

I don't know if it's intended, but I watched many clips of content creators fighting it. And no one experienced the same thing.

I'm stuck.

Here is an exemple

https://youtu.be/IhJngQu4gz0?si=7LIH8EzJ-85LUI3F

prob depends on modifiers you pick , I had this happen and you have to out dps and kill him before you die. I think it's intended , there's no penalty for dying anyway.

What's bigger problem I had last phase of boss not showing his HP bar.

Thanks, same for the health bar. I couldn't know where I was at (trying to one shot him when frozen).
For the modifiers, no way to know depending on the licht power you pick!!
Anyway, had to give up to do some maps.

Thank you

same thing. this fight can't be win

i figured it out!!!! if you dont move then they dont attack you !!!! was about to give up