Phase Spider

Large monstrosity, unaligned

  • Armor Class 13 (Natural Armor)
  • Hit Points 32 (5d10+5)
  • Speed 30 ft., climb 30 ft.

15 (+2) 

15 (+2) 

12 (+1) 

6 (-2) 

10 (+0) 

6 (-2)

  • Skills Stealth +6
  • Senses Darkvision 60 Ft., passive Perception 10
  • Challenge 3 (700 XP)
  • 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.


  • Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: (1d10 + 2) piercing damage plus (4d8)poison damage. The target must make a DC 11 Constitution saving throw. On a failed save the target takes the poison damage, 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.