Sources
CR
Type
Size
Alignment
Movement

Drow Priestess of Lolth

Medium Humanoid (elf), Neutral Evil

Armor Class 16 (scale mail)
Hit Points 71 (13d8 + 13)
Speed 30 ft.
STR
10
+0
DEX
14
+2
CON
12
+1
INT
13
+1
WIS
17
+3
CHA
18
+4
Saving Throws CON +4, WIS +6, CHA +7
Skills Insight +6, Perception +6, Religion +4, Stealth +5
Senses darkvision 120 ft., passive Perception 16
Languages Elvish, Undercommon
Challenge 8 (3,900 XP)

Traits

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.

Spellcasting

Innate Spellcasting. The drow's spellcasting ability is Charisma (spell save DC 15). She can innately cast the following spells, requiring no material components:

At will: dancing lights

1/day each: darkness, faerie fire, levitate (self only)

Spellcasting. The drow is a 10th-level spellcaster. Her spellcasting ability is Wisdom (save DC 14, +6 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): divination, freedom of movement

5th level (2 slots): insect plague, mass cure wounds

Actions

Multiattack. The drow makes two scourge attacks.

Scourge. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:5 (1d6 + 2) piercing damage plus 17 (5d6) poison damage.

Summon Demon (1/Day). The drow attempts to magically summon a yochlol with a 30% chance of success. If the attempt fails, the drow takes 5 (1d10) psychic damage. Otherwise, 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 dismisses it as an action.

Lore

Tens of thousands of years ago, the elves were divided, with those of benevolent disposition battling those that were selfish and cruel. The war among elvenkind ended when the good elves banished their malevolent kin to the subterranean depths. Here, in the lightless caverns and endless warrens of twisting passages, the dark elves-the drow-found refuge. They also found leadership in the only elven deity who had not forsaken them. At her command, the dark elves built an empire in the underworld.