uncommon n large humanoid 

Perception +15; darkvision, scent (imprecise) 30 feet

Languages Aklo

Skills Athletics +14, Stealth +12 (+15 in snow), Survival +11

Str +5 Dex +2 Con +4 Int -1 Wis +4 Cha -1

Snowblind When Hiding, the yeti is concealed by any snowfall, even if it's not thick enough to make other creatures concealed.

AC  21; Fort +15, Ref +11, Will +13

HP 115; Immunities cold; Weaknesses fire 10

Nightmare Guardian Yetis gain a +4 status bonus to saves against fear and against spells and abilities that affect dreams. A yeti that falls prey to a supernatural nightmare loses this ability and becomes permanently enraged, gaining a +1 status bonus to attack and damage rolls and a –1 status penalty to AC.

Vanish [R] Trigger The yeti is hidden or undetected while not in combat, and a creature would observe it. Effect The yeti Strides or Climbs up to half its Speed to a location where it can Hide, then Hides. If its new Stealth check result meets or exceeds the triggering creature's Perception DC, the yeti remains hidden.

Speed 35 feet, climb 20 feet

Melee [>] claw +15, Damage 2d10+5 slashing

Grisly Arrival [F] (emotion, fear, mental) Trigger The yeti hits a creature in the first round of combat and the yeti was hidden from that creature at the start of combat. Effect Each enemy within 30 feet that witnesses the attack (including the target of the attack) must attempt a DC 23 Will save. On a failure, the creature is frightened 2; on a critical failure, it's frightened 4.

Rend [>] (claw)

Bestiary, page 338.