The Dragon Knights are paragons of valor and leadership who partner with dragons. Such knights aspire to protect the innocent and rally fellow adventurers to the causes of justice and freedom. Although the Dragons Knights were a military division originally founded in Cormyr, it eventually grew to be a autonomous order of knights that now just base in Cormyr. When in need the nation can call on the Dragon Knights to help defend the nation in times of crisis. New recruits are enlisted from any realms where chivalry is in abundance, including the Silver Marches, Damara, and Chessenta. Those who choose this path make a magical pact with a hatchling creating a bond between the knight and dragon. This bond irrevocably transforms both dragon and knight, allowing the dragon to grow in strength and size faster than normal, as well as grow down a different path than one normally would. The knight also gains some of the traits of their bonded dragon.

Knightly Envoy

You gain proficiency in the Persuasion skill. If you are already proficient in it, you gain proficiency in one of the following skills of your choice: Animal Handling, Insight, Intimidation, or Performance.

Your proficiency bonus is doubled for any ability check you make that uses Persuasion. You receive this benefit regardless of the skill proficiency you gain from this feature.

Additionally, you can cast the Comprehend Languages spell but only as a Ritual. Charisma is your spellcasting ability for it.

Dragon Companion

The Dragon in Combat. In combat, the dragon acts during your turn. It can move and use its Reaction on its own, but the only action it takes is the Dodge action unless you take a Bonus Action to command it to take an action in its stat block or some other action. If you have the Incapacitated condition, the dragon acts on its own and isn’t limited to the Dodge action.

Resurrecting the Dragon. If the dragon companion has died within the last hour, you can take a Magic action to touch the dragon and expend a use of your Second Wind. The dragon returns to life after 1 minute with all its Hit Points restored. Otherwise, you can perform a 1-hour ceremony to resurrect the dragon; this ceremony can be performed as part of a Short or Long Rest.

DRAGON COMPANION
Medium Dragon, Neutral
AC 13 + your Charisma modifier
HP 5 plus five times your Fighter level (the dragon has a number of Hit Dice [d6s] equal to your Fighter level)
Speed 30 ft., Fly 30 ft., Swim 30 ft.

MOD   SAVE   MOD   SAVE   MOD    SAVE    MOD   SAVE    MOD   SAVE      MOD   SAVE
STR: 16  +3    DEX: 16  +3    CON: 14  +2     Int: 12   +1       WIS: 13   +1      CHA: 10  +0

Senses: Darkvision 60 ft.; Passive Perception 11
Languages: Understands the languages you know;
telepathy 30 ft.
CR: None (XP 0; PB equals your Proficiency Bonus)
TRAITS
Amphibious: The dragon can breathe both air and water.
Stalwart Bond: Add your Proficiency Bonus to any ability check or saving throw the dragon makes.
ACTIONS
Rend. Melee Attack Roll: +3 plus your Charisma modifier + your Proficiency Bonus, reach 5 ft. Hit: 1d6 plus your Charisma modifier Force damage.
Gravity Breath (2/Day). Constitution Saving Throw: DC 8 plus your Proficiency Bonus plus your Charisma modifier, each creature in a 15-foot Cone. Failure: The target is either pulled up to 15 feet straight toward the dragon or pushed 15 feet straight away from the dragon (your choice).

Dragon Rider

The dragon grows to Large Size. You can use the dragon as a mount if you are medium or smaller, but while you're riding it, the dragon falls at the end of a turn if its airborne and the only thing holding it aloft is its fly speed at which point it falls safely to the ground. it takes five feet of your movement to mount or dismount the dragon.

Improved Gravity Breath: The dragon’s Gravity Breath becomes a 30-foot Cone. When a creature fails its saving throw against that Gravity Breath, the creature also takes 2d6 Force damage.

Increased Speed: The Dragons Walking, Flying and Swimming speed increase too 40 feet.

Rallying Cry

When you use your Second Wind feature, you can choose up to three creatures within 60 feet of you that are allied with you. Each one regains hit points equal to your fighter level plus your charisma modifier, provided that the creature can see or hear you.

The dragon also regains Hit Points equal to 1d6 plus your Fighter level, and it regains one use of its Gravity Breath.

Rallying Surge

When you use your Action Surge, you can choose up to three allies within a 30-foot Emanation originating from you. Each ally can take a Reaction to use one of the following options.

Advance: The ally makes one attack with a weapon or an Unarmed Strike. If your dragon companion is one of the allies using Advance, the dragon can make one Rend attack and not use its reaction.

Retreat: The ally moves up to half its Speed without provoking Opportunity Attacks. If the dragon is one of the allies using retreat and you have mounted it you also do not provoke opportunity attacks while the dragon is moving.

Dragon Knight

You and your dragon companion gain the following benefits.
Superior Mount: The dragon grows to Huge size, and both its Speed and its Fly Speed increase to 50 feet. Additionally, the dragon no longer falls at the end of a turn if airborne while you’re riding it. If needed the dragon can reduce its size down to small and all sizes in between.

Enhanced Strength: The dragon's Rend attack deals an extra 1d6 force Damage. (For a total 2d6 Damage)

Tandem Attack: When you take the Attack action on your turn, you can forego one of your attacks to command the dragon to make one Rend attack. Alternatively, you can forego two of your attacks to command the dragon to use Gravity Breath.

Inspiring Sight

Beginning at 15th level, you can extend the benefit of your Indomitable feature to an ally. When you decide to use Indomitable to reroll an Intelligence, a Wisdom, or a Charisma saving throw and you aren’t incapacitated, you can choose one ally within 60 feet of you that also failed its saving throw against the same effect. If that creature can see or hear you, it can reroll its saving throw with a bonus of half your fighter level(Rounded Down) and must use the new roll.

Enduring Commander

You and your dragon have Resistance to Force and Psychic damage.