You are immune to poison and necrotic damage.
You can not be charmed, exhaustion, frightened, or poisoned.
Your soul can not be removed from your body, nor can it be destroyed, consumed, or defiled in any way.

You are resistant to radiant damage and bludgeoning, piercing, and slashing from nonmagical weapons.

Truesight 120ft.

You can see in normal and magical darkness, see invisible creatures and objects, automatically detect visual illusions and succeed on saving throws against them, and perceive the original form of a shapechanger or a creature that is transformed by magic. Furthermore, You can see into the Ethereal Plane 120ft.

You are proficient with a longbow and a greatsword.

Received at 3rd level:
All your weapon attacks will be considered magical.
When you hit with any weapon, the weapon will deal extra radiant damage.
This is a gift given to an Astral that has served faithfully.

You know if you hear a lie.

You have advantage on saving throws against spells and other magical effects.

When you attack with a bow and arrow, if the target is a creature that has 190 hit points or fewer, it must succeed on a DC 15 Constitution saving throw or die instantly.
The creature must roll every time it his hit with your bow, while it's hit points are 190 or fewer.
Another gift to be had after devotion is proven.
Unlocks at 16th level.

You touch any creature. The target magically regains 8d8 hit points and is freed from any curse, disease, poison, blindness, or deafness.

The Astral emits magical, divine energy. Each creature of your choice in a 10 -foot radius must make a Dexterity saving throw and take 8d6 fire or radiant damage(your choice) on a failed save, or half as much damage on a successful one. You must wait 1d6 rounds before you can use this ability again.

To use the 'charges' associated with this ability, roll 1d6 and tick that many charges as used. Every round, at the end of your turn, remove one tick. When you start a round with no ticks, you can use that ability again.

DC = 8 + Strength modifier + proficiency bonus

When you have proven your devotion, you will receive access to a divine Artifact.
Unlocks at 18th level.

You can silently teleport, along with any equipment you are wearing or carrying, up to 300 ft. to an unoccupied space that you can see, as a bonus action. You may take willing creatures that you choose, so long as you are capable of carrying their weight and you are touching them. You know the total weight and may adjust your choices before you teleport. There are no 'gotcha' surprises.

If you can not see your destination, you may calculate a distance and attempt a blind teleportation with perfect accuracy.  If the space is occupied, roll a D20, and see the chart below

RESULTS

You do not require material components when spell casting.

You can take on the appearance of any medium or small race that you desire.  The appearance is flawless, physical, and has no duration limit.  Your stats and skills do not change, except that you can not fly or use certain racial abilities.  Your speed stays the same.

When you open your wings as a free action, your appearance instantly changes to your real form, an Astral with shining metallic skin, hair, and wings.  Your size increases to 8 feet, and you are empowered.  When you are in your true form, you may use the Angelic Weapons buff, Searing Burst, and the Slaying Longbow freely, if you have them.  If you attempt to use any of these skills, your wings will open automatically, dropping the disguise.

True sight can see your Astral form.  The transformation is not magical.  It's more akin to divine origami.  Folding and shifting in the blink on an eye.

Your carrying capacity classification is always gargantuan.

All Stats up +8

Maximum ability scores are 30, instead of 20.

Astrals are immortal. 

If they are slain, their body vanishes into a pillar of sparks and appears before their god. 

They make death saves just like other creatures.

The player sends them back to the material plane through an alter they had built. 

If they didn't build any altars, the player has no influence and the character returns to being a Solar for its original god. 

Astrals can not be resurrected by standard means.

Astrals are always True Neutral.  They follow the will of their player.  If they are seen as good or evil, it does not change their true alignment.

They do not adhere to any laws or orders aside from those you tell them to, and they do not carry any independent moral compass other than what pleases you.

Your size is Medium.

Your base walking speed is 50 feet.

Your base flying speed is 150 feet.

You can speak, read, and write all languages.

You have telepathy up to 120ft.