Hero

Hero mobs are more powerful and more common than Champion mobs. They appear in some groups of mobs, and they also show up at groups that are guarding Treasure Chests. They have auras surrounding them. If you mouse-over a Hero it will say (Hero) instead of (Normal) at the bottom-right of the screen, and usually give its bonus percentages in Monster Health, Damage, and Loot. A Hero is less powerful than a Boss.