Base Class: Barbarian
Dexterity based barbarian.
Precision Fighting
You are now able to use dexterity-based weapons instead of strength-based weapons while still benefitting from your rage features. You have advantage on dexterity checks and saving throws while raging, rather than strength.
Targeted Fury
When you enter a rage, designate a creature as the target of your ire. You gain a proficiency bonus AC buff against attacks made by that creature. In addition, whenever you deal damage to that target, deal an additional proficiency bonus of the weapon's type damage.
Still Mind
You can’t be charmed or frightened while raging. You also gain advantage against charmed and frightened while not raging.
Shared Fury
You can share your ire with all creatures of your choice within 30 feet. For one minute, your allies gain +2 on damage rolls against the target of your ire and resist all damage dealt by that creature.
Unending Fury
Once per rage, when damage would reduce you to 0 hit points, you can make the target of your ire take the damage instead.