Needs review
Source: Dark Sun 3

Description: With your savage blows, you can make your companions give their best.

Prerequisites: CHA 13, Improved Critical, Perform (5 ranks)

Whenever you confirm a critical hit, all allies within a 60‐foot radius who have line of sight on you receive a +2 morale bonus on attack rolls for 1 round. This is a mind‐affecting effect. This effect is not cumulative.

Characters cannot be affected more than once in this way in the same combat