I hadn’t used spirits very much before HoT went live, so I only just noticed this. Spirits don’t have any AI to select targets. They will use their effects and their boons, if Nature’s Vengeance is taken, on whatever target is closest, even if that target is a mesmer clone. This makes the spirits much less reliable for team play when people have pets. I also think spirits should at least always effect the ranger no matter how many characters are closer to it, so not to require the person who summons the spirit to stand right next to it in order to benefit from their own utility skill.