The Glider Daleks, also called "Gliders" by the resistance fighters of Moldox, were a variant of the Skaro Degradations that were seen during the Last Great Time War.
They were seen amongst the other Degradations during the Dalek's occupation on Moldox. These Dalek Degradations travelled by hovering above the ground. The Dalek mutant resembled a limbless humanoid torso and was housed in a reinforced glass casing that was suspended above a regular looking Dalek dome. They had arms and energy weapons flanking them on either side. (PROSE: Engines of War)
Behind the scenes
For the video game Legacy, a pixelated sprite was made by PixelWho.