An elemental creature of great size, often hunted for their shells. Hunters might be lulled into a false sense of confidence upon sighting this ponderous, seemingly non-hostile creature. If any creature large enough to be a threat approaches too close, though, the snail unleashes a flash of scintillating light and then attacks with its mace-like tentacles.
As a Flail Snail moves slowly along the ground, consuming everything on the ground, stopping to relish crystal deposits especially, it leaves behind a shimmering trail that quickly solidifies into a thin layer of a nearly transparent substance inedible to the snail. This glassy residue can be harvested and cut to form colored window panes of varying clearness.