Phase-Sharks
by Chasmyr
his ship is rumored to have been invented by a coalition of human mages, and confirmed sightings of it a still rare. It is meant to take the war to the drow in their Underdark cities, without the hazards of travel in that cavernous realm.
Resembling a lean species of fish, this thing is called a phase-shark. It has two modes of travel, one is via the same devices as a normal air-ship, while the other is via the Border Ethereal. This ship enters the Border Ethereal and travels along the border between Mysaniti and the Ethereal plane. While in this state, it can not be seen by any means not capable of perceiving Ethereal objects.