Join the Nimbuz
The Dark Nimbus is a magical cloud that appears in Dragon Ball anime as an alternate version of the more widely-known Flying Nimbus Unlike the Flying Nimbus, the Dark Nimbus can carry people of an impure nature. Much like the Flying Nimbus, its primary function is a mode of transportation for one or more people. Presumably, it can also be used to carry cargo if the need arises. It looks exactly like the Flying Nimbus, but instead of gold, it is dark purple in color.