I would go with the normal creeps please! Seriously, its already so so easy to get EXP and lvl up, I really see no need for more creeps for EXP! As you said, it will be a purely mage party scene and somewhat for HKs to heal them. Although I am an HK myself, i think it will be v v unfair to warriors and archers ... well warriors can party in tao, what about archers...u want to eliminate them completely?