Quote Originally Posted by Hyrist View Post
To spice things up, you can have some monsters in the fodder run be immune to magical damage, or physical damage, or have specific (and random) objectives to each run. (Think Nyzul Isle with a bit more depth.)
I could get behind the idea of a random immunity like this, it makes me think of how the enemies are in Diablo II on Hell or Nightmare mode would just randomly have some immunity and could seriously screw you over if you weren't versatile.