Weremoose Charge and Mastery AoE hit passive ruins nightmare creatures with Shadow Affinity

This is also independent of any usual situation you'd want to attack "passive" nightmare creatures i.e. nightmare creatures aggro'd onto other players or followers. This unfortunately makes using the Weremoose mastery awkward in the Ruins as unless you want to aggro every nightmare creature during nightmare phase you have to cancel the three hit combo everytime while fighting other things.