Intimidating Shifting

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Prerequisite(s): Shifter
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Benefit: When you are shifting, you designate as single foe within 30 feet of you that you can attempt to demoralize as a free action (see the Intimidate skill, page 76 of the Player's Handbook). A foe that you successfully demoralize remains shaken for as long as you continue to shift. You may only use this feat against a single foe in any particular encounter.
 
Source: Unearthed Arcana