mm....
Mephisto could cast "AoE taunt", so your possible summons/mercs rage to him:
- You'r too late, whahahahhah, my brother has scaped you!
- Oh, you son of a.... We hate you!!!-
Sure thing, so I'm the Lord of Hatred and you lose some phys dmg and def ( like barb's taunt ). You are not forced to mindlessly attack him , after all... you've the almighty mousebutton! , but you also get the debuffs.
Diablo -> AoE Terror. I agree with that. Everything that's not a player would chicken away .
Baal -> He got the icon of evil spawning curses everywhere and everytime, I think its enough destruction avatar by itself >_<'
♥