Cunning Action. On each of its turns, the spy can use a bonus action to take the Dash, Disengage, or Hide action.
Sneak Attack (1/Turn). The spy deals an extra 7 (2d6) damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of the spy that isn't incapacitated and the spy doesn't have disadvantage on the attack roll.
Fey Ancestry. The drow spy has advantage on saving throws against being charmed, and magic can't put the drow spy to sleep.
Sunlight Sensitivity. While in sunlight, the drow spy has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.
Innate Spellcasting. The drow spy's innate spellcasting ability is Charisma (spell save DC 13). The drow spy can innately cast the following spells, requiring no material components:
At will: dancing lights
1/day each: darkness, faerie fire, levitate (self only)
Multiattack. The spy makes two melee attacks.
Shortsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:5 (1d6 + 2) piercing damage.
Hand Crossbow. Ranged Weapon Attack: +4 to hit, range 30/120 ft., one target. Hit:5 (1d6 + 2) piercing damage.