You have a flying speed of 30ft when not wearing heavy armor. These wings can look infernal, draconic, or somewhere in-between.

Your Strength score increases by 1, and your Charisma score increases by 2.

Draiflings mature at the same rate as Dragonborn but live a few years longer.

Draiflings, like Dragonborn, are taller and heavier than humans, standing well over 6 feet tall and averaging almost 250 pounds. Your size is Medium.

Your base walking speed is 30 feet.

You have draconic ancestry. Choose one type of dragon from the Draconic Ancestry table. Your damage resistance is determined by the dragon type, as shown in the table.

Draconic Ancestry

You have resistance to the damage type associated with your draconic ancestry, and you are resistant to fire damage due to your infernal heritage. If your draconic ancestry gives resistance to fire damage as well, you have immunity to fire damage.

You can speak, read, and write Common infernal, and Draconic. 

Thanks to your infernal heritage, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.