Is there any known way to make it so there's a fuckload of demons that need killing all the time, rather than just in quests?
EDIT:
Just got done with my first quest with hard mode quest for death, and it was awesome. 1000 imp snipers, didn't have any problems finding enough to kill. It was difficult though, on my first and currently only character, a guardian. I would still like to have generally lots of enemies rather than just lots of 1 kind of enemy for a quest.