crowds of hell is a mod that will add a healthy dose of difficulty to your Minecraft games by adding a new state for most of the hostile mobs in the game. an altered state called “Infernal”. Each infernal being acquires certain abilities, so it is difficult to encounter two identical infernal bosses.
Infernal creatures will look the same as normal creatures, but you can tell them apart because they emit a bluish glow, like enchanted items. Currently, creatures that can take on an infernal state are: Witches, Creepers, Zombies, Spiders, and Endermans. The Infernal State makes them faster, with more health, more attack power, and powerful new abilities.