You have Resistance to fire damage.

Thanks to your Infernal heritage, 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 colour in Darkness, only Shades of Gray.

You have an advantage against charm effects, and magic cannot put you to sleep. 

Increase dexterity, intelligence, and charisma by +1

Your Infernal and Fae heritage allow you to cast certain spells. 

You know the Thaumaturgy cantrip. When you reach 3rd Level, you can cast the Hellish Rebuke or Misty Step spell as a 2nd-level spell once with this trait and regain the ability to do so when you finish a Long Rest. When you reach 5th Level, you can cast the Darkness or Blink spell once with this trait and regain the ability to do so when you finish a Long Rest. Charisma is your Spellcasting Ability for these Spells.