you can fly up to 30 feet of distance when in dragon form instead of using your walking speed. you cannot fly while you are in your human form.

you can use your dragon tail as if it were a hand while you are in dragon form. you cannot use your tail to grab things while you are in your human form since your human form doesn't have a tail.

you can be ridden as if you are a horse but you cannot use any movement speed other than your walking speed while being ridden.

you use Fire Breath as your main dragon breath attack and bite weapons as your main weapons.

note: equip (A.H.C) Fire Breath as your main dragon breath attack; equip (A.H.C.) Normal Bite or (A.H.C.) Big Bite as your permanent main melee weapon.

you are resistant to fire in your human form and your dragon form.

you can read, write, speak, and understand common.

you can read, write, speak, and understand draconic.

you are vulnerable to cold.

you cannot attack while flying unless your party's Dungeon master says otherwise..

you can use one of thee slots to use either minor illusion or detect magic:

Detect Magic:

For ten minutes, you sense the presence of magical effects within 30 feet of yourself. If you sense such effects, you can take an action to see a faint aura around any visible creature or object in the area that bears the magic, and if an effect was created by a spell, you learn the spell’s school of magic.

The spell is blocked by 1 foot of stone, dirt, or wood; 1 inch of metal; or a thin sheet of lead.

Minor Illusion:

you use one action to create a sound or an image of an object within range that lasts for one minute. This illusion ends if you cast this spell again.

If a creature takes a study action to examine the sound or image, the creature can determine that it is an illusion with a successful Intelligence (Investigation) check against your spell save DC. If a creature discerns the illusion for what it is, the illusion becomes faint to the creature.

Sound: If you create a sound, its volume can range from a whisper to a scream. It can be your voice, someone else’s voice, a lion’s roar, a beating of drums, or any other sound you choose. The sound continues unabated throughout the duration, or you can make discrete sounds at different times before the spell ends.

Image: If you create an image of an object—such as a chair, muddy footprints, or a small chest—it must be no larger than a 5-foot cube. The image can’t create sound, light, smell, or any other sensory effect. Physical interaction with the image reveals it to be an illusion, since things can pass through it.

as a bonus action you can move up to half your speed and then do a bite attack.

you can use Super Fire Breath as your second dragon breath attack instead of Fire breath.

note: to use Super Fire Breath, equip (A.H.C.) Super Fire Breath

you have blindsight up to 20 feet.

you have dark vision up to 40 feet.

you can walk or run up to 30 feet.

you can use comet breath as a second alternate attack to fire breath.

Note: to use comet breath, equip (A.H.C.) Comet Breath

unless your dungeon master states otherwise: as a pure dragon, you fear getting hurt while flying over deep places (like a ravine or the ocean.), so you stay on the ground. also, you are used to walking and running rather than flying.

you can either use Speak With Animals or Draconic Lullaby three times per long rest.

Speak with animals:

using a action, for ten minutes, you can comprehend and verbally communicate with Beasts, and you can use any of the influence action’s skill options with them.

Most Beasts have little to say about topics that don’t pertain to survival or companionship, but at minimum, a Beast can give you information about nearby locations and monsters, including whatever it has perceived within the past day.

Draconic Lullaby:

you use an action to sing a lullaby.

Draconic Lullaby. Constitution Saving Throw: DC 15, each creature in a 15-foot Cone. Failure: The target takes one point of exhaustion. at the start of the target's next turn the target automatically sleeps for ten minutes after which the exhaustion point is removed. The target wakes up if it takes damage or a creature within 5 feet of it takes an action to wake it, but waking up the target mid sleep does not remove the point of exhaustion. this attack cannot give more than one exhaustion point to a target. also, you take a short rest or long rest to remove a point of exhaustion gained from this attack.

you can use either Heat Breath or Scorching Ray 3 times per day.

Heat Breath:

Heat Breath. Dexterity Saving Throw: DC 15, one creature you can see within 60 feet. Failure: (1d8) Fire damage, and the target’s Speed is halved until the end of its next turn. Failure or Success: you can’t take this action again until the start of your next turn.

Scorching Ray:

You take an action to breathe out three fiery rays that each have a range of 20 feet. You can breathe them at 2 targets within range or 3 targets. Make a ranged spell attack for each ray. for each ray, the target must make a dexterity saving throw of DC 15 in order to not be hit by the attack. On a hit, the target takes 1d6 Fire damage.

you can use either Shapeshift or Detect Thoughts three times per long rest.

Shapeshift:

you use 1 action to shapeshift into a medium sized beast or humanoid form for 1 hour or until you take a magic action to shape-shift into a different medium sized beast or humanoid form. You must have seen the sort of creature before, and it can’t be a Construct or an Undead. your abilities and stats remain the same regardless of the form you choose.

Detect Thoughts:

as one action you activate one of the effects below. Until the spell ends at 1 minute, you can activate either effect as a Magic action on your later turns.

Sense Thoughts. You sense the presence of thoughts within 30 feet of yourself that belong to creatures that know languages or are telepathic. You don’t read the thoughts, but you know that a thinking creature is present.

The spell is blocked by 1 foot of stone, dirt, or wood; 1 inch of metal; or a thin sheet of lead.

Read Thoughts. Target one creature you can see within 30 feet of yourself or one creature within 30 feet of yourself that you detected with the Sense Thoughts option. You learn what is most on the target’s mind right now. If the target doesn’t know any languages and isn’t telepathic, you learn nothing.

As a Magic action on your next turn, you can try to probe deeper into the target’s mind. If you probe deeper, the target makes a Wisdom saving throw. On a failed save, you discern the target’s reasoning, emotions, and something that looms large in its mind (such as a worry, love, or hate). On a successful save, the spell ends. Either way, the target knows that you are probing into its mind, and until you shift your attention away from the target’s mind, the target can take an action on its turn to make an Intelligence (Arcana) check against your spell save DC, ending the spell on a success.