Blade vortex life/mana leech not working

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adghar wrote:

Aye, I have a vague memory of testing that, and it was Attacks only. I believe the reasoning is:

Mods on items are local if they can be local, i.e. they modify some stat that already exists on a white version of an item. The ability to Hit is apparently a built in property of Weapons, because mods like Causes Bleeding on Hit are also local. Thus, any life gain on hit that doesn't specify Attack or Spell on a weapon will be Attack (with that Weapon) only.

There is like a 7% chance that I completely misremembered my test results, so if you want to be 100% certain, test it yourself (probably easiest way would be having Orbs of Regret ready and use Vaal Pact to measure Life levels precisely)

Spot on!
Everything that can be local will be local unless otherwise stated.
Crit Chance added DMG etc. will all benefit the Weapon only. Same is the case for on Hit Effects.
It´s pretty much "...on Hit [with this weapon]"

I know that's an OK rule of thumb, but it doesn't really work that well for many mods, and there are lots of exceptions. I think you are better off just learning which mods are local and which ones are global.

Some are pretty obviously local, even with no rule.
eg: reduced attribute requirements.

Others fit the rule really well.
eg: increased crit chance, increased attack speed, increased physical damage, are all obviously local. Whereas mana regen, resistances, dexterity, etc... are all obviously global.

Then, there are the ones which don't really fit the above rule, but you can kinda wiggle it around to make it work.
eg: accuracy rating and life gain on hit are local. (Weapons can hit, right?)
Flat added elemental damage is local, but % increased elemental damage is global. (Uhhh, weapons can deal elemental damage natively, just not too much...)

Then there are just the ones that you just really have no idea about, even with that rule:
Mana gained on kill is obviously... er.... I guess weapons can kill, so it must be local, right?
Increased stun duration on enemies is, uhhh.... glocal?

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PS: Don't even start trying to apply it to Unique mods, you'll get nowhere fast!