Giant Wolf Spider

Medium beast, unaligned
Armor Class 13
Hit Points 11 (2d8 + 2)
Speed 40 ft., climb 40 ft.
STR
12 (+1)
DEX
16 (+3)
CON
13 (+1)
INT
3 (-4)
WIS
12 (+1)
CHA
4 (-3)
Skills Perception +3, Stealth +7
Senses blindsight 10 ft., darkvision 60 ft., passive Perception 13
Languages
Challenge 1/4 (50 XP)

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

Web Sense. While in contact with a web, the spider knows the exact location of any other creature in contact with the same web.

Web Walker. The spider ignores movement restrictions caused by webbing.

Actions

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 4 (1d6 + 1) piercing damage, and the target must make a DC 11 Constitution saving throw, taking 7 (2d6) poison damage on a failed save, or half as much damage on a successful one. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.

Giant wolf spiders hunt prey across open ground or hide in burrows or crevices to attack from ambush.
Monster Manual (SRD)