In my second playthrough I'm going through a custom challenge. This is one highlight of the playthrough, killing a powerful Warchief, before going to the second region. I left his captains alive before the fight, on purpose, to face them all at once. Mys elf-imposed challenges are: (a) No prompts, obviously; (b) Very limited skills, the first tier (except the counter buff), plus throwing dagger, for the first region; and the counter buff, wraith finisher and fire arrow for the second region... along with the yellow skills, which you need for the story; (c) I let the time advance 3 times after story missions or after I die, so Captains may upgrade more; and (d) After learning Brand/Command I will only Brand/Command one guy at a time, except for Branding the 5 Chiefs for the story, whom I won't Command. If you like this custom challenge or would like to suggest your own, please comment. :)