Hero (Enemy)
From Paragon Wiki Archive
Heroes are extremely powerful entities. They con +5 to their level. Their HP are usually in the tens of thousands (ten times that of standard bosses), substantial regeneration and recovery, high damage, and have a cycling period of near-immunity to all Status Effects except Sleep and Immobilization. Approach with extreme caution and several teammates.
Heroes are basically Archvillains, only with a Hero identifier, thus, they use the same debuff tables, and will spawn as weaker Elite Bosses against teams which are small and/or using low notoriety settings.