Those that follow of the way of savage fighting are incredible powerful warriors capable of dealing immense amount of lethal force with their bare hands. While not being the most nimble and showman of fighters, they are highly effective in defeating their foes in a quick and efficient manner.

Level 3: Fury of might

Fury of might, as a bonus action you can enter a fury for 1 minute. When adding either your strength or dex ability modifier to your damage roll, you double the amount added.  You can use this feature a number of times equal to your Constitution modifier per long rest.

Additionally your martial die changes to a d6 at lvl 3, a d8 at lvl 11, and 2d6 at lvl 17

Level 6: Ferocious strikes

At 6th level, while in fury when you hit a creature with a unarmed strike you gain a fury dice. These fury dice can be spent when you hit a creature to deal additional damage. You lose all unspent fury dice when your fury ends or on a long rest or short rest.

Your fury dice is a d6 at lvl 6, a d8 at lvl 12, and a d10 at lvl 18

Level 11: Adrenaline rush

When ever you reduce a foe's hp to 0 you regain 1d6hp + your con modifier

Level 17: Quivering Palm

At 17th level, you gain the ability to set up lethal vibrations in someone's body. When you hit a creature with an unarmed strike, you can spend 3 ki points to start these imperceptible vibrations, which last for a number of days equal to your monk level. The vibrations are harmless unless you use your action to end them. To do so, you and the target must be on the same plane of existence. When you use this action, the creature must make a Constitution saving throw. If it fails and its maximum hp is 100 or less, it is reduced to 0 hit points. If it succeeds, it takes 10d10 necrotic damage.

You can have only one creature under the effect of this feature at a time. You can choose to end the vibrations harmlessly without using an action.