Is Bladefall Spell Damage?

I was wondering because when I equip the physical damage portion of the ability goes up.

Spell Damage applies to Bladefall.

In more general terms, Bladefall is a spell and behaves exactly like any other spell in all respects. It is also in no way an attack.

so get spell damage and physical damage? and what about proj damage?

Look at the skill and read its description:
It has AoE and Spell Keywords and it deals physical dmg.

-> % phys dmg, % spell dmg, % aoe dmg work

Does this spell benefit from %physical attack damage leeched as life?

It will not benefit from attack modifiers. An attack is considered something like a weapon hit or unarmed hit.

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fanimala wrote:

It will not benefit from attack modifiers. An attack is considered something like a weapon hit or unarmed hit.

The talent blood drinker is considered an attack modifier?

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fxyo wrote:

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fanimala wrote:

It will not benefit from attack modifiers. An attack is considered something like a weapon hit or unarmed hit.

The talent blood drinker is considered an attack modifier?

Yes. As it says, "0.4% of Physical Attack Damage Leeched as Life". You will find that almost all sources of life leech are worded in the same way, so won't work with spells.

The only way you can leech life is with the gem linked to your spell, it being physical damage will allow you to use Hatred Aura. If you are scaling phys damage then you could use an attack skill to leech and it might not be that bad ,especially something like a Spell/phys dagger and whirling blades with Fortify support, faster attack... or leap slam for a scepter...