Frightful Presence
Source Alien Core pg. 209
(aura, emotion, fear, mental) A creature that first enters the area must attempt a Will save. Regardless of the result of the saving throw, the creature is temporarily immune to this monster's Frightful Presence for 1 minute.
Critical SuccessThe creature is unaffected by the presence.
SuccessThe creature is frightened 1.
FailureThe creature is frightened 2.
Critical FailureThe creature is frightened 4.