5,6 around 26ish no one can really tell, cause he's wearing what seems to be a suit to keep his gaseous form in. They are quite light—only about 100 pounds—and their weight diminishes as they age and more and more of their substance returns to the aethersphere. Your size is Medium. Darkvision. Accustomed to the night, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

Elemental Nature. Your creature type is both humanoid and elemental. In addition, you don't require air, food, drink, or sleep and are immune to diseases.
Faceless. You have a perfect poker face due to the brand that exists in place of what would be a face, and the ever-moving gas that makes up your body. When a creature that is not a novakid, makes a Wisdom (Insight) check against you to read your intentions, it is made at disadvantage.

Small Sun. As a radiant ball of compressed gas and heat you have a number of benefits. You know the produce flame cantrip, Dexterity is your spellcasting ability for it, you are resistant to fire damage, the space you occupy is considered bright light, you shed dim light in a 10-foot radius and as such you have disadvantage on Dexterity (Stealth) checks made to Hide.

Solar Flair. As an action, you can accelerate the process of fusion within yourself, causing your soft glow to become a searing light that radiates from you. You can maintain this flair for 1 minute or until you end it as a bonus action. During it, you shed bright sunlight in a 20-foot radius and dim sunlight for an additional 20 feet. In addition, when you use this trait you can force all creatures within 20 feet of you to make a Constitution saving throw or become blinded until your flair ends. An affected creature can repeat this saving throw if they end their turn outside of your radius, ending the effect on a success. The DC for this saving throw is equal to 8 + your proficiency bonus + your Constitution modifier. Once you use this trait, you can't use it again until you finish a long rest.

Short Term Memory. Like most novakids, you suffer from short-term memory loss. Whenever you roll an Intelligence check, roll a 1d4, on a 1 you have disadvantage on that Intelligence check.

White Dwarf. Like the celestial bodies they take after, when you die, your body gives off a final flare before it breaks down, dealing fire damage equal to your level in a 5-foot radius. Your body then implodes inwards, shrinking your Medium-sized frame into nothing but your core, as well as leaving behind the charred, crumpled remains of your brand. Your core is a Tiny luminous resilient orb, that gives off light as per your Small Sun trait and will continue to do so for the next 10,000 years. For the purpose of spells and effects that would return to you to life, this is considered your body.

Born of Aether. You have resistance to necrotic damage.

Pact of the Blade
You can use your action to create a pact weapon in your empty hand. You can choose the form that this melee weapon takes each time you create it. You are proficient with it while you wield it. This weapon counts as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.
Your pact weapon disappears if it is more than 5 feet away from you for 1 minute or more. It also disappears if you use this feature again, if you dismiss the weapon (no action required), or if you die.
You can transform one magic weapon into your pact weapon by performing a special ritual while you hold the weapon. You perform the ritual over the course of 1 hour, which can be done during a short rest.
You can then dismiss the weapon, shunting it into an extradimensional space, and it appears whenever you create your pact weapon thereafter. You can't affect an artifact or a sentient weapon in this way. The weapon ceases being your pact weapon if you die, if you perform the 1-hour ritual on a different weapon, or if you use a 1-hour ritual to break your bond to it. The weapon appears at your feet if it is in the extradimensional space when the bond breaks.

Akimbo. You can engage in two-weapon fighting with a pair of light firearms, and can add your ability modifier to the damage of your offhand weapon.

Infusions:

Devil's Sight
You can see normally in darkness, both magical and nonmagical, to a distance of 120 feet.

Patron's Munitions
Prerequisite: 5th level, Pact of the Blade Feature

As a bonus action, your patron gifts you three bullets that you can use to load your current firearm you have summoned with your Pact of the Blade feature. When you use this feature, you can have any number of these bullets appear loaded in your firearm, provided there is space; otherwise, they appear in your hand.

These bullets have a +1 to hit and damage and have special properties based on your patron:

Hexblade: Targets hit by these bullets are treated as though they are under the effects of your Hexblade's Curse. You may only recover hit points from a single bullet per use of this invocation.
These bullets last for 1 minute or until fired from your firearm. Once you use this invocation, you can't use it again until you finish a long rest or expend a warlock spell slot, gaining a number of bullets equal to the spell's level.

Splitting Weapons
Prerequisite: Pact of the Blade Feature

When you choose to summon a pact weapon on your turn and it has the Light property, you can choose to summon a copy of it if you have another free hand. This copy disappears if you are no longer holding it at the end of a turn, if you summon a different pact weapon, if you dismiss it as a free action, or if you die. You may resummon this copy to your free hand as an action or a bonus action if you are still wielding the other light pact weapon.

In addition, when you engage in two weapon fighting with both of these pact weapons, you can add your ability modifier to the damage of the second attack.

Eldritch Ammo
Prerequisite: Pact of the Blade Feature

Weapons you summon with your Pact of the Blade feature no longer require ammunition and ignore the Loading property. If a weapon has the Reload property, you must use 1 action or 1 attack to fill the weapon with ammo.

Eldritch Firearm
Prerequisite: Pact of the Blade Feature

You can use any weapon you summon with your Pact of the Blade feature as a spellcasting focus for your warlock spells.

In addition, you gain access to a limited amount of firearms you are able to conjure as your pact weapon, based on your warlock level.

Level Weapons
3rd Palm Pistol, Pistol
5th Musket
9th Pepperbox, Blunderbuss
12th Bad News, Hand Mortar

Eldritch Smite

Once per turn when you hit a creature with your pact weapon, you can expend a warlock spell slot to deal an extra 1d8 force damage to the target, plus another 1d8 per level of the spell slot, and you can knock the target prone if it is Huge or smaller.

Thirsting Blade
Prerequisite: 5th level, Pact of the Blade feature
You can attack with your pact weapon twice, instead of once, whenever you take the Attack action on your turn.

FEATS:

Gunner
Source: Tasha's Cauldron of Everything

You have a quick hand and keen eye when employing firearms, granting you the following benefits:

Increase your Dexterity score by 1, to a maximum of 20.
You gain proficiency with firearms (see “Firearms” in the Dungeon Master’s Guide).
You ignore the loading property of firearms.
Being within 5 feet of a hostile creature doesn’t impose disadvantage on your ranged attack rolls.


Sharpshooter
Source: Player's Handbook

You have mastered ranged weapons and can make shots that others find impossible. You gain the following benefits:

Attacking at long range doesn't impose disadvantage on your ranged weapon attack rolls.
Your ranged weapon attacks ignore half and three-quarters cover.
Before you make an attack with a ranged weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If that attack hits, you add +10 to the attack's damage.

Mobile
Source: Player's Handbook

You are exceptionally speedy and agile. You gain the following benefits:

Your speed increases by 10 feet.
When you use the Dash action, difficult terrain doesn't cost you extra movement on that turn.
When you make a melee attack against a creature, you don't provoke opportunity attacks from that creature for the rest of the turn, whether you hit or not.