Ghost Ape
CREATURE 4Ghost apes are reclusive and territorial creatures that usually reveal themselves only when their homes are threatened. Most ghost apes will first attempt to use their imposing presence and natural teleportation to frighten and confuse their foes into fleeing. Ghost apes can speak but aren't particularly talkative, though they will, on rare occasions, treat with those who approach them with respect. Ghost apes can be powerful allies when motivated by a common cause, although they tend to be suspicious of outsiders, and their trust isn't easily earned.
The ghost ape phases partially out of existence, its form blurring and becoming difficult to pinpoint. While in this stance, they are Concealed to any creature that isn't adjacent to them. They can't use this concealment to Hide or Sneak. They also gain resistance 5 to physical damage. If the ghost ape takes force damage, this stance ends and they can't reenter it for 1d3 rounds.
The ghost ape beats their chest in a terrifying display. Creatures within 30 feet must succeed a DC 20 Will save or become Frightened 1 (or Frightened 2 on a critical failure). While a creature is frightened by this ability, it's Off-Guard to the ape. On a success, the creature is temporarily immune for 1 minute.