Fear

Fear is a special ability of azure dragons. It causes creature stacks to freeze in combat, similar to what happens with bad morale. Units immune to this effect:

• Azure dragons
• Elementals
• Golems
• Undead

Fear the spell

Fear
	School:	Earth Magic
	Level:	4
	Cost:	16
	Duration:
Basic effect
Strikes an enemy unit with such fear that it becomes unable to attack and nearly unable to move.
Advanced effect
Same as basic effect, but penalty to movement is twice that of basic fear.
Expert effect
Same as basic effect, but penalty to movement is three times that of basic fear.
Probability of occurrence (%):
Castle    Rampart    Tower    (*) Inferno    Necropolis    Dungeon    Stronghold    Fortress    Conflux    Cove     Factory     * Without Library

In the early versions of the game, a hero could learn a fear spell from a pyramid. However, this feature was removed in somewhere along the lines of update patches.