Geophantoms spawn in the Dreadlands and have the AI of spiders.
Geophantoms have permanent invisibility. Once a player is in a 3 block radius of a Geophantom, they will be inflicted with blindness for 3 seconds. They have a base health of 40 (20 hearts) and are silent. Geophantoms are distant cousins of both spiders and phantoms.
None.