Shadow Elf, Variant (5e Subrace)
From D&D Wiki
Shadow elves are a subgroup of elves that were exposed to the powers of Shadowfell. However, unlike the pale shadar-kai, these shadow elves have skin that ranges from a midnight black to a deep twilight purple. In this way, they are almost like drow in pigment. However, they are strangely nocturnal in that they hate to do anything while the sun is up, even if they are not directly within its rays. They thus are said to have an internal clock that allows them to know the phases of the sun and moon relative to their location. While active, they tend to engage in espionage and other crafty projects involving their great stealth. Unlike drows, they also are unaffected by the sun directly. They just have an inherited preference against it. They also lack the same proficient sight in darkness.
Ability Score Increase. Your Charisma score increases by 1.
Weapon Training. You are proficient with light crossbows, daggers, and shortswords.
Shadow Stealth. While you are in darkness, you have advantage on Dexterity (Stealth) checks.
Shadow Magic. You know the minor illusion cantrip. When you reach 3rd level, you can cast the pass without trace 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 invisibility (Self Only) spell once with this trait and regain the ability to do so when you finish a long rest. You do not need the material components required of the spells. Charisma is your spellcasting ability for these spells.
Inner Clock. You always know whether it is night or day in your location, even if the sun and moon are not visible to you.