i read the datasheet when it came out and had an image in my head of a tzeentchian Dark Elf Black Ark sort of thing!
like hairies idea basically. have a smaller base made of a half hemisphere of terrain foam, then cut the bottem so its like bedrock! then you can get a clear plastic rod and secondary base to show it floating around. im subscribing to this one, looking forward to your progress!
i also like the cabal of wizards representing the weapons. (weapon destroyed = wizard killed
)