Grip of the Mountain

The yeti can grab hold of the target. While held the target will take 1d6 +1 crushing damage straight to vitality. The target can attempt to make a hard acrobatics check to wiggle free from the grip. Otherwise the target is stuck and unable to act until the duration is over or the yeti lets go, whichever comes first. 

Cry of the Mountain

Skill that lets the yeti let out a loud roar which unnerves the affected targets, causing them to need to make a normal mental balance -2 check to attack or use any skills or spells against the yeti. The unnerving effect lasts for 2 rounds.