It’s a more manageable than it sounds, basically there’s a new mini boss that gets tracked for you in that level. You beat them and they’re gone for good. It’s fun because you can target them specifically for revenge and xp, and they’re unique in the shadow of war games. So like, if you get killed by goblin the drunk, he becomes goblin crusher the drunkest, and his character has fun visual changes like a tank of beer strapped to his back.