Path of the Fey

At their core, each Barbarian is fueled by overwhelming emotions, the intensity of which is incomprehensible to others. Comparing a regular angry person to a raging Barbarian is like comparing a breeze and a hurricane. This Barbarian subclass uses Fey magic to let others feel the intense emotions they feel, either to make their allies hit harder, or to make their enemies act irrationally. 

Art by Sharp Chivers (Twitter/ArtStation)