Dragonkin Evolutionary Feats

Dragonkin, being the creation of Drakons and Dragons, have learned to adapt and evolve over their long lives. Ever trying to reach, in their mind, the ultimate evolution of Dragon, the Dragonkin have access to some feats that allow them to realize their potential as they reach their next evolutionary stage.
Each feat allows the retainment of features gained at the previous stage. For example, the Dragonborn Evolution feat allows the newly evolved Dragonborn to retain the features the Kobold race had, and add the features granted by the feat.

Evolutionary Feats:

Dragonborn

_{(from Kobold)}

Prerequisite: Evolved from Kobold

Size: Triple your height and multiply your weight by 10 to arrive at your new height and weight. Your size changes to medium

Draconic Ancestry: Choose one type of ancestry from the Dragonborn dragon ancestry table. Your breath weapon and resistance are determined by the dragon type as shown on the table

Breath Weapon: You can use your action to exhale destructive energy. Your draconic ancestry determines the size, shape, and damage type of the exhalation. When you use your breath weapon, each creature in the area of the exhalation must make a saving throw, the type of which is determined by your draconic ancestry. The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 damage on a failed save, and half as much damage on a successful one. The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. After you use your breath weapon, you can’t use it again until you complete a short or long rest

Damage Resistance: You gain resistance to the damage type associated to your draconic ancestry

Winged Dragonborn

^{(from Urd)}

Prerequisite: Evolved from Urd

Size: Double your height and multiply your weight by 5 to arrive at your new height and weight. Your size becomes medium

Wings: Your flying speed becomes equal to your base walking speed unless you have a flying speed that is faster

Draconic Ancestry: Choose one type of ancestry from the Dragonborn dragon ancestry table (see above). Your breath weapon and resistance are determined by the dragon type as shown on the table

Damage resistance: You gain resistance to the damage type associated to your draconic ancestry

Half Dragon 

^{(Dragonborn Variant)}

Prerequisite: Evolved from Dragonborn; 12th level, or reach 100 years of age

Senses: Gain blindsense out to a range of 10ft

Breath Weapon: You gain a breath weapon, the damage is the same type as your draconic ancestry. You deal 4D12 damage, this damage becomes 5D12 at 16th level. If you already have a breath weapon it is replaced with this breath weapon. Also after you use your breath weapon roll 1D10, if you roll a 9 or higher you can use your breath weapon again

Wings: You gain a flying speed equal to your base walking. If you already have a flying speed this replaces it unless your current flying speed is already higher