Drider

Large monstrosity, chaotic evil

Armor Class 19 (natural armor)

Hit Points 123 (13d10+52)

Speed 30ft., climb 30ft.

Skills Perception +5, Stealth +9

Senses darkvision 120ft., passive Perception 15

Languages Elvish, Undercommon

Challenge 6 (2,300 XP)

Traits

Fey Ancestry

The drider has advantage on saving throws against being charmed, and magic can't put the drider to sleep.

Innate Spellcasting

The drider's innate spellcasting ability is Wisdom (spell save DC 13). The drider can innately cast the following spells, requiring no material Components

At will: dancing lights

1/day each: darkness, faerie fire

Spider Climb

The drider can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Sunlight Sensitivity

While in sunlight, the drider has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Web Walker

The drider ignores movement restrictions caused by webbing.

Actions

Multiattack

The drider makes three attacks, either with its longsword or its longbow. It can replace one of those attacks with a bite attack.

Bite

Melee Weapon Attack: +6 to hit, reach 5ft., one creature.
Hit: 2 (1d4) piercing damage plus 9 (2d8) poison damage.

Longsword

Melee Weapon Attack: +6 to hit, reach 5ft., one target.
Hit: 7 (1d8+3) slashing damage, or 8 (1d10+3) slashing damage if used with two hands.

Longbow

Ranged Weapon Attack: +6 to hit, range 150/600ft., one target.
Hit: 7 (1d8+3) piercing damage plus 4 (1d8) poison damage.