Dragon Knight

Kinghts who imitate dragons become stronger. Becoming more and more dragon-like the stronger they get.

Dragon Aspect

Level 3 - As a bonus action you enter a draconic state, while in this state you choose an element (acid, cold, fire, lightning, or poison) you gain resistance to selected element as you grow dragon scales, you gain an unarmed claw attack which deals 1d6 slashing damage, your claws have finesse, your draconic power flows through you imbuing your attacks with your selected element dealing ( levels 3 1d4, level 9 1d6, level 15 1d8) additional damage of your selected element. This state lasts a minute, and you can use Dragon Aspect equal to your proficiency bonus. These uses reset on a short rest.

Dragon Breath

Level 7 - You've now learned to breath like a dragon. While in the Dragon Aspect state; when you take the Attack action on your turn, you can replace one of your attacks with a Breath Attack. A Breath Attack is either a 5 by 30 ft. line (Dex. save) or a 15 ft. cone (Dex. save). The Element you chose for Dragon Aspect is the damage type for this attack.  When you use your breath weapon, each creature in the area of the exhalation must make a Dex saving throw. The DC for this saving throw equals 8 + your Strength modifier + your proficiency bonus for the cone breath attack or 8 + your Dexterity modifier + your proficiency bonus for line attacks. A creature takes 3d6 damage on a failed save, and half as much damage on a successful one. The damage increases to 4d6 at 12th level, 5d6 at 16th level and 6d6 at 20th level. You can use your Breath Weapon a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a short or long rest.

Iron Scales

Level 7 - Your dragon powers have grown giving you the scales of a true Dragon. Gain a +2 to your AC while in Dragon Aspect. (Note: you will have to add this yourself as it is a temporary buff.)

Dragon Wings

Level 10 - While in Dragon Aspect you sprout Dragon Wings, which give you a flying speed of 30 ft.

Dragon Senses

Level 10 - Your Dragon Powers have begun to bleed into your natural senses, giving you expertise in perception.

Dragon Aura

Level 15 - Once per long rest, whilst in Dragon Aspect, you can give off a threatening aura of 15 ft that all creatures within must make a wisdom saving throw or be frightened. A single saving throw does not make a creature immune to this aura. This lasts for one minute, even if the Dragon Aspect ends early.

Dragon Form

Level 18 - You can Shape Change into a Dragon CR 20 or lower. The Shape Change does not use your health, but the heath of the Dragon you changed into. You can use this once per Long Rest. The max CR changes when you have 20 levels in this class to CR 21.