The phase spider was a massive and elusive form of magical Spider that hunted both the Material Realm and Ethereal Border planes. These arachnids were known for their ability to shift between the planes at will, using this unique ability to hunt prey, evade predators, or guard hidden treasures. They resembled a typical Giant Spider with sleek, iridescent bodies covered in shimmering black or deep purple carapace. Their eight legs ended in sharp, barbed tips that allowed them to climb vertical surfaces and move with uncanny speed and agility. Their multiple eyes gleamed with an otherworldly intelligence, capable of spotting prey and potential threats across both planes of existence.
Phase spiders lived solitary lives, weaving intricate webs in the dark recesses of caves, ancient ruins, or ethereal crossroads where the boundaries between worlds were thin. They communicated through clicking mandibles and subtle vibrations, signaling territorial boundaries or mating readiness to others of their kind.