Fear effects are a form of crowd control that makes a victim to run in random directions, unable to perform most actions for a period of time. Feared creatures have a small chance to break Fear when damaged. Any Fear, no matter the duration listed, will last a maximum of 12 seconds when used against players in PvP, and fear is affected by diminishing returns. Undead and Mechanical monsters are generally immune to Fear. Boss monsters, including lesser bosses of pre-70 instances, and some elite monsters are immune to Fear and other crowd control effects.