Medium humanoid (elf), neutral evil
Armor Class 16 (breastplate)
Hit Points 130 (20d8 + 40)
Speed 30 ft.
Saving Throws Con +7, Wis +9, Cha +10
Skills Insight +9, Perception +9, Religion +7, Stealth +7
Damage Immunities poison
Condition Immunities poisoned
Senses darkvision 120 ft., passive Perception 19
Languages Abyssal, Elvish, Undercommon
Challenge 13 (10,000 XP)
Command Spiders. If the drow isn't incapacitated, any spider can make a bite attack as a bonus action while within 10 feet of the drow.
Fey Ancestry. The drow has advantage on saving throws against being charmed, and magic can't put the drow to sleep.
Innate Spellcasting. The drow's spellcasting ability is Charisma (spell save DC 18). She can innately cast the following spells, requiring no material components:
At will: dancing lights
1/day each: darkness, faerie fire, levitate (self only)
Lolth's Sight. Magical darkness doesn't impede the drow's darkvision.
Magic Resistance. The drow has advantage on saving throws against spells and other magical effects.
Speak with Spiders. The drow can communicate with spiders as if they shared a language.
Spellcasting. The drow is a 17th-level spellcaster. Her spellcasting ability is Wisdom (save DC 17, +9 to hit with spell attacks). The drow has the following cleric spells prepared:
Cantrips (at will): guidance, poison spray, resistance, spare the dying, thaumaturgy
1st level (4 slots): animal friendship, cure wounds, detect poison and disease, ray of sickness
2nd level (3 slots): lesser restoration, protection from poison, web
3rd level (3 slots): conjure animals (2 giant spiders), dispel magic
4th level (3 slots): blight, divination, freedom of movement
5th level (2 slots): greater restoration, insect plague, mass cure wounds
6th level (1 slot): harm, heal
7th level (1 slot): divine word, plane shift
8th level (1 slot): holy aura
9th level (1 slot): mass heal
Sunlight Sensitivity. While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.
Multiattack. The drow makes three attacks with its scourge.
Scourge. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 17 (5d6) poison damage.
Summon Demon (1/Day). The drow magically summons a yochlol. The summoned demon appears in an unoccupied space within 60 feet of its summoner, acts as an ally of its summoner, and can't summon other demons. It remains for 10 minutes, until it or its summoner dies, or until its summoner dies, or until its summoner dismisses it as an action.
Drow priestesses of Lolth hope to one day attain the title of Lady of Spiders, thereby being able to count themselves among the most blessed of the Spider Queen's subjects. Lesser drow are emboldened in the presence of one of these Ladies, fighting to the death to protect her.
A Lady of Spiders bears several blessings from Lolth, most notably immunity to poison and the ability to speak with and command spiders.