This could be a bug. It is in the questionable neighbourhood. Admittedly, I kind of like it the way it is - it makes the skill not crap, because you are allowed to not die to people with auras.
The skill in question is Holy Fury. What is advertised is getting 3 HP per attack, but apparently the game does this in the most literal fashion. The result being that you heal the 3 HP regardless of your target's aura.
(Seen on Casior.)
Holy Fury
Re: Holy Fury
There's a pending fix for this in the next patch.
Katerina Hasheen - Necromancer Advocate, champion of a better Hashaa
Serena Hasheen - Gun ES, Macro Hunter, Freedom Array booster
Isabel Hasheen - Gunwizard Councillor, infusion's #1 fan
Kandarin - Lightning Elementalist, Crusader, fontnet architect
Erduhr-Khazai - Fire-breathing Dragon DO, Evil Overlord, pillager of planes
Serena Hasheen - Gun ES, Macro Hunter, Freedom Array booster
Isabel Hasheen - Gunwizard Councillor, infusion's #1 fan
Kandarin - Lightning Elementalist, Crusader, fontnet architect
Erduhr-Khazai - Fire-breathing Dragon DO, Evil Overlord, pillager of planes