Phase Spider

Large monstrosity, Unaligned

Armor Class

13 (natural armor)

Hit Points

32 (5d10+5)

Speed

walk 30 ft., climb 30 ft.

Skills

Stealth +6

Senses

darkvision 60 ft.

Challenge

3

Ethereal Jaunt

As a bonus action, the spider can magically shift from the Material Plane to the Ethereal Plane, or vice versa.

Spider Climb

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

Web Walker

The spider ignores movement restrictions caused by webbing.

Actions

Bite

Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (1d10 + 2) piercing damage, and the target must make a DC 11 Constitution saving throw, taking 18 (4d8) 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.