Not at all New(ish) Super Smash Bros Melee Tech

It's a turn around shine jump cancel, then the jump animation is canceled by the edge

It can also be used as a quick way to grab the edge if you don't bair

I say new(ish) because it's probably already out there, just haven't seen it yet

[CapitalUZAC]

Didn't realise this had already been found, thanks for the comments. Updated the video title

[ori.gmi]

Not a new thing. SilentWolf already talked about this in like 2007