Crystal Elf (5e Subrace)
From D&D Wiki
Crystal Elf (Vitreur)
A race of cave dwelling elves, living near the molten lava, creating fabulous cities, weapons, and armour out of crystals, mithril and enchanted spider silk harvested from tamed giant spiders living in and defending the cities alongside the Vitreur. Crystal Elves are known for their stealthy ways and brutal methods of dealing with adversaries, making them more inclined to work as both fighters and assassins.
Ability Score Increase. Your Intelligence score increases by 1.
Crystalline Darkvision. You can see in dim light and darkness out to a radius of 120 feet as though it was bright light.
Sunlight Sensitivity. You have disadvantage on attack rolls and on Wisdom (Perception) checks that rely on sight when you are in direct sunlight.
Crystal Training. You know the Chromatic Orb Cantrip. Intelligence is your casting modifier for this spell.
Arachnia Tamer. Can capture, tame and ride Giant Spiders. Taming takes 3 long rests (24 Hours) with successful DC 15 Wisdom (Animal Handling) checks after each long rests.
Crystalline Senses. You have an advantage on Wisdom (Perception) checks when you are in darkness.