Today I present you: Reverse Fair.
I'm sure you guys have heard of reverse Nair. It has great combo potential, and confirms into a Bair. This is just reverse Nair but better.
A reverse Fair when performed with correct timing will almost always land the late hit, with the added bonus of the opponent being closer to Jigglypuff. This move has AMAZING combo potential and if you can land one it's pretty much guaranteed death from what I've seen.
Here's some combos:
Reverse Nair > Reverse Fair
Reverse Fair > Reverse Fair > Reverse Fair (kills if at ledge)
Reverse Fair > Dair
Reverse Fair > Rest
Reverse Fair > Nair
Reverse Fair > Bair (still unsure about this one)
Unfortunately, this is a move nearly exclusive to the claw grip. You could set your L trigger to jump and perform it that way, but it's much easier to just claw it. The reason why this cannot be performed normally with the same potency is because you have to push forward to perform a Fair and cannot move backwards fast enough to move in the opposite direction. With a claw grip, you can just move backwards while hitting forwards on the C-Stick.
Hopefully we can find some more setups for this move in the future!