Armor Class 15
Hit Points 225 (30d8 + 90)
Speed 30 ft.
Saving Throws DEX +11, CON +9, CHA +10
Skills Acrobatics +11, Athletics +8, Perception +8, Stealth +11
Senses darkvision 120 ft., passive Perception 18
Languages Elvish, Undercommon
Challenge 18
Fey Ancestry. The drow has advantage on saving throws against being charmed, and magic can't put the drow to sleep.
Sunlight Sensitivity. While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.
War Magic. When the drow uses its action to cast a spell, it can make one weapon attack as a bonus action.
Multiattack. The drow makes three scimitar attacks.
Scimitar. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 8 (1d6 + 5) slashing damage plus 18 (4d8) poison damage. In addition, the target has disadvantage on the next saving throw it makes against a spell the drow casts before the end of the drow's next turn.
Hand Crossbow. Ranged Weapon Attack: +11 to hit, range 30/120 ft., one target. Hit: 8 (1d6 + 5) piercing damage, and the target must succeed on a DC 13 Constitution saving throw or be poisoned for 1 hour. If the saving throw fails by 5 or more, the target is also unconscious while poisoned in this way. The target regains consciousness if it takes damage or if another creature takes an action to shake it.
Mordenkainen's Tome of Foes, p. 183