Darkvision

Thanks to your celestial 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 grey.

Celestial Resistance

You have resistance to necrotic damage and radiant damage.

Fey Ancestry

You have advantage on saving throws against being charmed, and magic can't put you to sleep.

Trance

Aasimar don't need to sleep. Instead, they meditate deeply, remaining semiconscious, for 4 hours a day. While meditating, you can dream after a fashion; such dreams are actually mental exercises that have become reflexive through years of practice. After resting in this way, you gain the same benefit that a human does from 8 hours of sleep.

Shadow Stealth

While in dim light or darkness, Aasimar can take the Hide action as a bonus action.

Innate Magic

You know the light cantrip. Once you reach 3^rd level, you can cast the levitate spell once with this trait, and you regain the ability to do so when you finish a long rest. Wisdom is your spellcasting ability for these spells.