The Berserkers (what used to be the daily dungeon quest mobs) aoe fear, but they are undead, stunnable, and it has a short casting time. It has a respectable range.

I have had them fear into the last big pack before the boss and then feared into the abomination. The abomination is clearly there just for poor sods that get feared. Getting feared by the last trio into the King just sucks.

They do random cast the spell, so they can chain fear. But seriously, just stun/kill them.