Description and Characteristics
The phase spider resembled a giant, two-eyed, spindly-legged spider with the same dark blue and white coloration. Phase spiders were monstrous arachnid-kin that dwelt within the Ethereal Plane. They made quick forays into the natural world to snatch an unlucky creature to feed upon. Those stolen by phase spiders were never seen again and were regarded as unsolved disappearances.
Behavior and Intelligence
A phase spider possesses the magical ability to phase in and out of the Ethereal Plane. It seems to appear out of nowhere and quickly vanishes after attacking. Its movement on the Ethereal Plane before coming back to the Material Plane makes it seem like it can teleport.
Locations in Vestra
Most often found in the Ethereal Plane, they often hunt the passages of the Underdark