Dragonborn

(Medium) Exotic ancestry.

The soul of a dragon burns within you, the scales of your body are like forged steel. You are a kiln and your heritage the coals that stoke your flames. Call upon your wrath, to speak in the tongue of your ancestors and imbue unbridled fury into your attacks.

Draconic Heritage. +1 Armor. When you attack: deal an additional LVL+KEY damage (ignoring armor) divided as you choose among any of your targets; recharges whenever you Safe Rest or gain a Wound. You know Draconic if your INT is not negative.

From Core Rules