Nightmare Weaver

Combat

You can use your ability to create magical darkness to terrorize enemies.

Prerequisite: Improved Unarmed Strike, Nightmare Fist, Intimidate 2 ranks, ability to cast darkness.

Benefit: By spending a full-round action to cast darkness, you can also make Intimidate checks to demoralize all foes in the spell’s initial area.

Special: This feat counts as Dazzling Display for purposes of qualifying for Deadly Stroke and Shatter Defenses.

Source: Ultimate Combat