Darkvision. Thanks to your draconic 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 colour in darkness, only shades of gray.

Draconic Resistance. Your scales are imbued with a fragment of a Black Dragon's vitality. You have resistance to acid damage.

Gift of the Black Dragon. You can use your draconic heritage to empower your attacks. When you make an attack roll and hit, you can add 1d8 acid damage to the damage roll. You can use this feature a number of times equal to your proficiency bonus and you regain all expended uses on a long rest.

Natural Scholar. You inherit the Black Dragon's innate astuteness. You gain proficiency in either Arcana, History, Investigation, Nature, or Religion. You also learn one additional language.

Swamp-born. You can hold your breath underwater for up to 30 minutes at a time, and you have a swimming speed equal to your walking speed.