The story of the Way of the Yeti begins with a monk from a small monastery in a mountainous country getting lost during a blizzard. He blindly stumbled into a cave, not knowing what was inside, only to find it was occupied by yeti. Even yeti know better than to travel during blizzards, so the monk remained safe as the storm passed over the mountain, the yeti eyeing him suspiciously. The snowfall had been so heavy that the natural landmarks the monk used to travel had been covered, and so when he stepped out of the cave he was still lost. The only shelter he had was in the cave was with the yeti, so he set about trying to prove himself to them, knowing they respected strength.

Over the Winter he learned yeti hunting methods, and their use of clubs and slings; he gradually began to go on hunts and then even raids with the yeti, sharing in the spoils. Eventually, the yeti came to accept him as a member of the tribe. The monk even stayed with them after the harshest part of Winter had passed, learning more of their hunting tactics and even some of their mysticism as he began to understand more of their language. Finally, after Spring had come and the last of the snows melted away, the monk departed a changed man.

 Not returning to his home monastery, he set out to find a new mountain range for a hermitage, and traveled far to the East. There he stayed, living in a way between yeti and man, and training the few monks who had endured the journey to find him. As learned monks do, he had a long, extended life, and eventually a new kingdom rose up in the lands near the mountain chain. The number of his visitors and pupils greatly increased, and his small hermitage became a full monastery. Now quite advanced in age, he longed for the quiet of the wilds, and it is said he founded other Way of the Yeti monasteries elsewhere before passing away.

It may be that you came from one of these monasteries hidden deep in the mountains, or that you had close encounters with yeti of your own, but you now are part of a tradition that combines primal savagery with dynamic form and advanced tactics. You appearance in battle will send a chill down your opponent's spine.

Frigid Flurry

Starting when you choose this tradition at 3rd level, your ki takes on the wintry aspect of the homes of the yeti, scouring those nearby when you act in a flurry of motion. This change also invigorates you, and allows your fortitude to ward off blows.

Whenever you hit with one of your Flurry of Blows attacks, enemies within 5 ft. of the target take Constitution modifier Cold damage; a creature can only take this damage once a turn. Your Constitution modifier becomes a bonus to AC when unarmored instead of your Wisdom modifier.

Savage Strikes

At 6th level, you have learned how to harness the savagery of the yeti, striking fiercely with explosive power. When you use your Martial Arts to attacks, you can critically strike on a roll of 19-20, or 18-20 at level 15.

Ally Avalanche

Beginning at 11th level, your study of yeti tactics has revealed how their war bands coordinate and strike without warning. You can now put these principles to work in your own confrontations.

Once a turn when you score a critical hit, an ally within 30 ft of you and your target can make an attack as a free action.

Freezing Fury

At 17th level, you gain the ability to emulate the chilling gaze and howl of the yeti, and freeze a foe solid with your ki. When you hit with an unarmed strike, you can spend 5 ki points to try to Petrify the target in ice; the creature must make a CON saving throw (DC {{savedc:wis}}). If it fails, it is petrified in ice for 1 minute, becoming vulnerable to Fire damage and immune to Cold damage for the same duration.