PoE 2 Incinerate type of damage?

I've been trying to ask it in several places to no avail.

Does Incinerate have HIT part or not? PoE 1 had but it's not clear in PoE 2 since the gem sheet has both Fire Damage and Estimated Ignite damage - this makes me think it has HIT part.

On another hand I tried using Gain % as extra cold damage mod - and I don't get any chill effect from Incinerate while I do with other fire spells and since Gain mod doesn't work on Damage over time then it probably doesn't have any HIT part and masteries like increased hits damage vs burning enemies are useless? Or supports like Execute that lets you deal more damage with hits vs low hp enemies. I was wondering why they let you even slot the support gem then but maybe it's because of cast while channeling support possibilities

I'm also wandering if Incinerate 'Hits' the target. Like does the Acolyte of Chayula passive that adds chaos dmg to hits work with Incinerate?

There's a new tech in PoE2 that allows damaging ailments to be inflicted without an actual hit involving. If you carefully read Incinerate's description, you'll notice there's no damage listed. It deals damage purely via ignites.

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fenixfera#0036 wrote:

I'm also wandering if Incinerate 'Hits' the target. Like does the Acolyte of Chayula passive that adds chaos dmg to hits work with Incinerate?

No, it doesn't hit.