Game Mechanics: More than 4 npc's shouldn't be able to attack a target at once

[Ele]

I do recall something like this to the effect that if you had more than 4 mobs on you and they caught up to melee range, that 4 would engage you and the others would start walking away, until you moved out of melee range and then they would pursue again.

Will dig and see what turns up.

This + proximity aggro working correctly would be epic!