The Clouds are temporary weapons used by Luna Girl in "Catboy's Cloudy Crisis" that is used to block the sun with clouds so that no daytime kid can play summer games again. The clouds are produced from the Luna Magnet.
In similarity to the Mitomites, the clouds are controlled and commanded by Luna Girl's Luna Magnet.
The clouds are able to produce heavy raindrops in which Catboy seems to be afraid of, as well as producing lightning bolts. The clouds are also considered solid objects as Luna Girl using the Luna Magnet is able to cloud-cover people with zero visibility vision.
Sorceline's main acolytes, the Mitomites, were directly inspired from the clouds that her television counterpart (Luna Girl) has created.
Not only that the clouds were inspired from the Mitomites, but Sorceline's Bag-To-Oblivion may had been inspired from Luna Girl's ability to cloud-cover people.