I don't think you can rep me again lol.
Anyway,
Nature's Protection is a skill that is really only useful in parties. Once cast, it lowers a mob's aggression level towards the caster and directs mobs to attack the party-member with the next highest level of aggro.
It has greatest effect if it is casted with the mob inside the radius of the skill.
link
btw:- It works even if the mob isn't in the AoI.
It just works much better if it is.