Martial Artist (Sifu)

Prerequisite: You must have taken the Martial Artist feat  three times. 

You have become a master of martial arts and are able  to flow freely from one style to another. You gain the  following benefits. 

• Your unarmed strikes uses a d10 for damage. • When you use a bonus action to enter a stance you  choose two stances you know and enter both until  you go unconscious, choose to end them, or use your  bonus action to enter another stance. 
• When you train a creature for a week or more you can  attune to them. That creature gains the benefits of the  Martial Artist feat but may only select Martial Artist  styles you know. This effect ends when you end your  attunement to that creature.