You maintain a localized area of extreme heat around yourself. You are unaffected by extreme heat, you and allies within 5ft have advantage on saving throws against the effects of extreme cold. (see DMG, pg.110)

Additionally, your elemental nature allows you to forego mortal sustenance. You do not need to eat or drink, provided you spend at least one hour per day resting in an open fire source (such as a campfire, hearth, or the sun's direct light) to absorb ambient heat and energy. 

Your elemental nature renders flame harmless (immunity to fire damage) but the bitter cold will snuff you out given the chance, you take 2 times damage from frost damage, and cannot swim in water, the sensation causes physical pain and discomfort, you take 1d6 damage (frost) per turn you spend in water. 

You have Darkvision with a range of 60 feet.

Your connection to the elemental plane of fire and magical nature grants you access to innate magic casting, you gain a damaging fire cantrip at 1st level, a 1st level spell slot at 3rd level, and a 2nd level spell slot at 5th level these can only be used for fire spells. your spell slots recharge after a long rest, or after 4 hours resting in fire (only applies to spell slots gained through this racial ability) (you may choose from the wizard, sorcerer, or cleric spell lists, spells gained this way do not count towards your learned spells)

• at 1st level gain a damaging fire cantrip
  
  
• at 3rd level gain a 1st level spell slot, and a fire spell 
  
  
• at 5th level gain a 2nd level spell slot, and a fire spell 
  
  
• at 9th level gain a 3rd level spell slot, and a fire spell

You gain the ability to create, snuff out, move, or reshape a non-magical flame within 30 feet

When you reach 3rd level. As a bonus action, you can expend a spell slot of 1st level or higher to summon a spectral, multi-armed Aspect of Cinder made of swirling, molded flame that envelops your body. The aspect lasts for 1 minute or until you fall unconscious.

• When you unlock this feature at Level 3, and again when you reach 5th, 7th, and 9th level, you unlock one of the benefits of the Aspect of Cinder that you do not already possess. 

  1. Aura of Heat: Once per turn when you hit a creature with a melee weapon attack, the target takes extra Fire damage equal to $2d6$ + twice the level of the spell slot expended to activate this ability.

  2. Asura's Focus: You gain a bonus to your AC and all saving throws equal to the level of the spell slot expended (maximum $+5$).

  3. Primal Force: You gain a monumental boost to your physical might. For the duration of the Aspect of Cinder, you gain the following benefits:

     • Titanic Strength: Your carrying capacity and the maximum weight you can push, drag, or lift are multiplied by $10$ times the level of the spell slot expended.

     • Elemental Shove: As part of the Attack action, you can use a spectral arm to perform a special shove in place of one of your regular attacks. If the creature fails a Strength saving throw (DC $8+\text{your Proficiency Bonus }+\text{your Strength Modifier}$), you can choose to either knock the target prone OR push the target up to $15\text{ feet}$ away from you.

  4. Searing Evasion: You can channel the Aspect's heat into bursts of speed. While the Aspect is active, your walking speed increases by $10$ feet per level of the spell slot expended (maximum $+50\text{ feet}$), and you can ignore the effects of difficult terrain.

Your blended ancestry grants you the ability to channel elemental fire into pure propulsion.

Prerequisite: You must be at least 5th level to use this feature.

You can use a bonus action to manifest a pair of shimmering, skeletal wings made of molded fire and heat. The wings last for 1 minute and do not require concentration.

• If you use this feature once per Long Rest, your flying speed is 30 feet.

• If you expend a spell slot of 3rd level or higher to activate this ability, your flying speed is equal to your walking speed + $10$ feet per level of the spell slot expended.

Once you use this ability, you can't use it again until you finish a long rest, unless you expend a spell slot of 3rd level or higher to use it again.