Phase spider

A phase spider was a magical beast akin to a predacious version of the ethereal filcher. 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.

Description
The phase spider resembled a giant, two-eyed, spindly-legged spider with the same dark green and white coloration of an ethereal filcher (though it was a bit more blue than green).

Combat
While the filcher transported between the Ethereal Plane and the Material Plane for the purpose of stealing, the phase spider did this for the purpose of hunting. It looked for a likely spot in the Ethereal Plane, and then teleported (its form of teleportation was known as "phasing," hence the name) to the Material Plane, presumably ambushing travelers it expected to be there, biting and killing them, and then quickly retreating back to the Ethereal Plane.

Behavior
They could not speak. They were regarded as neutral in alignment.

History
In the, a small group of drow arachnomancers took over one of ancient Illefarn ruins, interestingly enough, located in the deep jungles of Samarach of the Chultan Peninsula. Even though their goal remained a mystery, they brought a pack of phase spiders with them and kept the deadly creatures in the top levels of the ruined structure.

Appearances

 * Adventures
 * The Mines of Bloodstone • Dungeon #45, "An Artist's Errand" • Dungeon #128, "The Fireplace Level" • Pool of Radiance: Attack on Myth Drannor • Waterdeep: Dungeon of the Mad Mage
 * Baldur's Gate: Descent into Avernus
 * Video Games
 * Pool of Radiance series (Pool of Radiance • Curse of the Azure Bonds • Secret of the Silver Blades • Pools of Darkness)  • Neverwinter Nights (AOL) • Baldur's Gate series (Baldur's Gate • Baldur's Gate II: Shadows of Amn • Baldur's Gate II: Throne of Bhaal • Baldur's Gate: Siege of Dragonspear • Baldur's Gate III)  • Icewind Dale series (Icewind Dale • Icewind Dale: Trials of the Luremaster • Icewind Dale II)  • Neverwinter Nights series  (Neverwinter Nights 2 • Neverwinter Nights 2: Storm of Zehir) •
 * Card Games
 * Dragonfire ( Shadows Over Dragonspear Castle )
 * Organized Play & Licensed Adventures
 * Sleeping Dragon's Wake • Liar's Night • Recipe for Retribution
 * Sleeping Dragon's Wake • Liar's Night • Recipe for Retribution