Way of the Fiend Claw

Monks of the way of the fiend claw learn to turn their physical attacks into sharp, blade-like strikes, while also adopting a fighting style, and skillset, used by the beings of the hells. They spend much of their time studying the beings of hell like demons and devils, and learning the infamous claw strike technique.

This technique, first used by Vaslalbav, goddess of blades and princess of hell, was a way to make ones punches or kicks become sharp. Through intense study and potential mastery of this fighting style, ones fist can have the same affect on an opponent as a sharpened sword, or vicious dagger.

Student of Hell

Because of your study, and time spent in the realms of hell, you become familiar with the history, culture, and religion of these realms and their people.

You gain advantage on Arcana, History, and Religion checks regarding fiends or hell. 

Claw Strike

You learn the claw strike technique, allowing to sharpen your physical attacks as if they were made with blades.

You use your key to sharpen attacks. When you hit a creature with an unarmed strike, you can spend 1 key point to deal extra slashing or piercing damage equal to one roll of your martial arts die + your dexterity modifier. You can use this feature only once per turn.

 

Fiendish Vigor

You learn to steel your resolve like the evil forces you have studied. You are less easily frightened, and master the speed and valor of the fiendish forces of the hells.

You gain advantage on wisdom saving throws against being frightened. You can use the dash action as a bonus action.

Flurry of Blades

When you make an unarmed strike with Flurry of Blows, you can spend 1 ki point to use a claw strike on two flurry of blows attacks.

When you make an unarmed strike with Flurry of Blows, you can use Claw Strike with that attack without spending the ki point for Claw Strike. You can still use Claw Strike only once per turn.

Master of the Claw

You fully learn and master the Claw Soul stance, a stance that turn your body into a sharpened weapon that harms anything that touches it.

Your mastery of the Claw Strike extends to your entire body. As an action, you can take the ultimate Claw Strike stance, dealing damage equal to your martial arts die + your dexterity modifier to any creature that physically attacks you, and doubling the damage of Claw Strikes. This feature costs 5 ki points and lasts five minutes, once expended, this feature cannot be used again until you finish a short/long rest.