So Jinora gets scratched by a demon and becomes deathly ill, whereas you can take quite a few hits from the demons roaming the forest and walk away with no fear of illness? Smells like a CONSPIRACY!
That feeling when you kill a shaman and a witch on a timed challenge, only to have another shaman revive the dead shaman, which, in turn, revives the dead witch.
Tip for the last mission: Keep the spy invisible most of the time and walk him over to groups of witches/shamans/summoners to stop them from shooting the rest of your group