I like this idea. Seems simple. Thank you very much Solu9!Base the spell on any Aura ability. When a unit nearby the aura unit casts a healing spell check in a trigger if that unit has the Aura buff. If "true" then heal the target "(Healing spell level + the static amout healed) x (whatever precentage you want, fx, 0.3 for 30% more healing). It needs to be 0.3 and not 1.3 since you already healed the target for 100% the first time it's casted.
Keep in mind that you would have to figure out how strong the initial heal was, which as far as I know is impossible to determine directly using just the base editor and no libraries. You could figure out what the base data for the heal is by looking at the spell being cast and the rank of that spell, if it's a direct heal spell like holy light. What about the heal from a life-stealing item like Mask of Death, or the Dreadlord's Vampiric Aura? What about the base regeneration heals of most units, or the increased regeneration from Undead standing on Blight or Night Elves during the nighttime? What about auras such as the Healing Stream Totem, where the "cast" itself just places the totem, and the actual heals don't have an associated cast?
It might be better to look into some sort of detection system rather than trying to trigger every single possible healing instance yourself.
Ideally, yes. hehe, don't feel stupid... I'm the one who has no idea what I'm doing derpwait, i feel stupid, so there will be bonus healing when unit is healed under the effect of the aura? is that how it works?