In a technical standpoint, almost every powder or liquid touching clone, inevtiably, it goes downward. Why not implement or have a modification to clone where the powders and liquids can ascend instead of descend? On that note, the particles that typically ascend with normal clone will descend with Reverse Clone.
Not much to go on, but regular clone has as many uses as this clone would have, but this clone is Reverse.
There is literally no way to do this besides shooting particles upwards. TPT isn't capable of having some particles have reversed gravity and others have normal
Of course TPT is capable of that, just look at ANAR... quite why you'd want this, though, I have no idea. Creating a new reversed type for every normal element type would be stupid, as well.
That was mostly my point, that it would require adding a new element for each current element, and just reversing the gravity on the new elements, creating a huge amount of near-duplicate elements with a "falling upwards" property.