Avatar of fire convertion from physical

who can explain convertion avatar of fire ,If by build is physical only that convert to fire 75% and 25 % is physical right? , convertion include passive tree like two-hand damage,area damage.
So if I scale up damage I shoud add fire damage ?
if I want to convert 25% to fire also how to make it ?


ex.
My gem skill physical damage 100 = (75 fire and 25 phy ) +add fire damage, Is right ?

Avatar of fire makes it so you can't deal physical damage, so if your damage is 100 physical, then after you will do 75 fire damage and 0 physical.

There is currently no way to get 100% converted to fire.

You can get 75% from avatar and for example 60% from skill gem (Molten blast for example) but they happen separate from each other.

example: 100 physical damage
skill gem convert 60%
60 fire, 40 physical.
Avatar of fire convert the last 40 physical damage:
90 fire damage, 10 physical.
Avatar of fire makes you do no physical damage so you are left with 90 fire damage.

Maybe in the future there will be items to get the last 25% properly.

You can scale damage with +adds physical or +adds fire damage, +adds fire damage will be better as you get 100% of the damage.

Converting to fire gives some other benefits like you can use -fire resistance curse, fire exposure etc.

On weapons %increased physical will give you more damage, but not on other items and passive tree, only %increased fire damage or other mods that are not a specific damage type will give you more damage. Not %increased physical damage!

%increased elemental damage will work.
%increased damage with 2handed weapons will work if you are using 2handed weapon.
%increased area damage will work if your attack is area damage etc.