You have undergone extensive, dexterous, physical training. In doing so you have mastered the art of using fluid movement to replace the need for using much of your strength while you rage. In addition your rage grows so strong that you will strike your enemy from any range so long as you can deal damage.

• Increase your Constitution or Dexterity score by 1, to a maximum of 20.
• When you make a melee or ranged weapon attack using Dexterity, you gain a bonus to the damage roll that increases as you gain levels as a barbarian, as shown in the Rage Damage column of the Barbarian table. (You no longer get the bonus for using strength.)
• The above now applies to your Reckless Attacks and Brutal Critical as well.
• Your Indomitable Might becomes Peerless Agility, and works for dexterity, rather than strength.
• Your Primal Champion Strength bonus changes to Dexterity.

Adapted from BaB_Table_Top