You are able to see up to 60ft in darkness but unable to discern color.

Blindsight up to 10ft. When reaching level 10, blindsight is increased to 30ft.

Proficient in Perception.

At level 1, your flight speed is half your movement speed. At level 5, your flight speed is your normal movement speed.

You are not proficient in any armors or weapons or tools.  You are able to wear other accessories like rings, amulets, ect.

Stats

Due to unable to wear armor or wield weapons profiecently, you gain your strength from using your own body over time.

At levels 5, 9, 13 you gain +2 strength and +1 constitution to compensate.

You start out as medium size. At level 5 you become large. At 14 you become huge. Huge may be edited out later.

Maximum strength and constitution is 22 at level 1, at level 5 maximum strength and constitution is 24.

AC

Your Calculated AC = 14 + Proficiency or Dexterity. Whichever is higher. Since you cannot wear armor your scales will harden over time.

Dragon Attacks

At level 1, you have a bite attack 1d10+strength. At level 5, your bite attack now is counted as magical and does 2d10+strength. At level 14, your bite attack does 3d10+strength but this final increase may be edited out later on.

At Level 5, you may now attack with your claws, being 1d6+strength and are treated as magical. At level 10, the damage increases to 2d6+strength.

 Multiattack

 Starting at 5th level, once per turn, you can replace one of your attacks with three attacks, so long as you make one of the attacks with your bite and two with your claws.

At level 1 you are resistant to your dragon heritage color when you chose your breath weapon type.

At level 6 you become immune to your chosen type.

WIP

Based on usual breath weapon shapes, 1 action to use.

DC = 8 + Profiency + Constitution

The damage dealt by the breath weapon is 1d6 per character level plus 1d6 per proficiency bonus point on a failed save, and half as much damage on a successful one. Example level 1 has profiency of 2, so 3d6 damage. In an encounter you may attempt to recharge your breath weapon by rolling a 5 or 6 on a 1d6. The breath weapon is assumed to be recharged after an encounter. You can use your breath weapon up to your con modifier per long rest (Minimum of 1).

At level 1, you may use an action to polymorph yourself into a medium or small humanoid of your choice and bonus action to dismiss the said polymorph. You may not revert your choice of humanoids afterward. This polymorph spell duration lasts until a long rest, you may also continue to stay in the form during said rests and consume a use but you have as many uses of this ability base on your constitution modifier (Minimum of 1).