Well, change the rule...it's the devs' respondibility to create the rules, not the players'. If one mob had the ability to heavily buff and/or heal others, you wouldn't simply spam AoE everytime. You'd either focus him while sleeping other so that they won't hit you, or sleep it far away while you deal with others.
Because if you didn't hold the hand of your players for the first 79 levels, they wouldn't be uneducated about their job at level 80.
