but you could also make groups of mobs have party behavior, but more challenging since it has a specific AI edited, I explained the idea would be to create a group of mobs, where the leader of the group behaves in a certain way with the AI , and their minions react according to the situation, let them buff, heleen in groups, let a tank and mob polero try to override your healers, very dynamic, I would bet on an AI to mobs, where if you lower your HP to 30%, the aggressiveness is ramdom, where an archer minion concentrates on trying to stun your healer, when the tank minion is low on HP it uses UD and also uses aura of Hate and so on, generate challenging behavior.