When determining your character’s ability scores, increase one of those scores by 2 and increase a different score by 1, or increase three different scores by 1.

Your walking speed is 30 feet

I'm not writing something for each dragon type youre a black draconian 

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.

You have resistance to acid damage

When you drop to 0 hit points, you can use your reaction to unleash this burst of energy. When you do so, each creature within 5 feet of you must make a Dexterity saving throw. The DC for this save equals 8 + your proficiency bonus + your Charisma modifier. On a failed save, an affected creature takes 2d6 damage and suffers an additional effect. The type of damage and the additional effect are determined by your subrace. On a successful save, an affected creature takes half as much damage only. Once you use this feature, you must finish a short rest before you can use it again.

Starting at 5th level, your magical burst becomes more potent. The damage dealt increases to 3d6, and the range increases to 10 feet. 

Your Death Throes trait deals acid damage, and erupts in a spray of acid. On a failed save, an affected creature becomes covered in sticky acid for 1 minute. A creature can use its action to scrape or wash the acid off itself or another creature. A creature covered in the acid takes acid damage equal to your proficiency bonus at the start of each of its turns.

When you fall at least 10 feet above the ground, you can use your reaction to glide horizontally a number of feet equal to your walking speed, and you take 0 damage from the fall. You determine the direction of the glide.