Inquiry about Arbiter of Ash Raw Damage numbers

Hey guys,


As a HCSSF player, I'm planning to face the Arbiter of Ash once again after many failed attempts,and I've been wondering;

Are there any verified/non-verified or any player insights into the raw damage numbers for his Flame Seed and Flame Corridor abilities? I know they are "one-shot" mechanics, but i have very high defensive values on my druid right now so im trying to calculate if i can stay alive after making a single mistake.

It's not that im gonna facetank him, but i've been wondering what to expect in case i mess up avoiding one of his abilities.

https://poe2db.tw/The_Arbiter_of_Ash#TheArbiterofAshDemonClawBoss

Scroll down and you can read the abilities. Also at the top side you can see boss has +450% damage. Not sure how that interacts with the abilities/spells he uses, but would assume its just multiplicative.