Superior Darkvision. Centuries in the Darkened Realm has caused your race to thrive in shadow. You have exceptionally superior vision in dark and dim conditions. You can see in dim light within 120 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.
Sunlight Vulnerability. You have disadvantage on attack rolls and on Wisdom (Perception) checks that rely on sight when you, the target of your attack, or whatever you are trying to perceive is in direct sunlight. Additionally, you take 1d8 radiant damage if you start your turn in direct sunlight, unless your skin and face are fully covered by clothes and a mask.
Dark Resistance. You have resistance to necrotic damage.
Shadow Magic. You know the thaumaturgy cantrip. When you reach 3rd level, you can cast the darkness 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.
Twili Teleportation. When standing in dim light or darkness, you can spend your bonus action to magically teleport up to 30 feet to an unoccupied space you can see that is also in dim light or darkness. Once you use this trait, you can’t use it again until you finish a long rest.