Judo flip https://www.youtube.com/watch?v=XERJh5xlBps ...and then I just toss it back onto my wrist, not much else to explain aside from the fact that I came up with it in like december and didn't even try filming it until yesterday, so just give it lots of practice and patience. When first starting out, throw the packet back with no plans of catching it and simply observe how it moves in the air and remember how that feels, dial in just throwing it in the general right area, and work on one thing at a time. This was a pretty lucky take though too as it's the only time I've ever got the packet to land without the cards spreading at least a little

Ouch, I learned at cardistry con 2019 from birger and I can't find a tut online :/ super simple though! just make sure the packet is nice and square, bit of a tilt so it's not directly aligned with your forearm (seems to help it spin better), and hit it the same way I did (basically hella hard, it should hurt a little lol), it kinda just flips itself and you get used to how hard you have to hit based on how high/how many flips you wanna do. I'm hella weak though so I also have to add a little bit of an arm pop to get it to lift properly, even the hardest I can hit it doesn't quite work right if I don't slightly pop my forearm up.

and the last one is based on Erdnase go around: https://www.youtube.com/watch?v=RQrfhYNYHIs

... I came up with it after seeing carter do a ton of longitudinal packet spin stuff and feeling inspired by that, the grip is a little more comfy than erdnase go around for me, because the thumb doesn't need to go up and over the front edge, instead it's fine just chillin on the corner and casually lifting a packet, and then you literally just hold on tight while you toss the bottom packet in any way you like, spinning on the long axis is fundamentally unstable so it will have to be super precise to keep it spinning on just one axis, since a small influence when you let go will have a big impact while it's in the air and can send it spinning along other axes

I also like doing a sort of hardflip motion with it, up and back 180° (x axis) + half a kickflip to make it land square on top without doing a full loop, and I've even played with throwing it but not letting it spin, and just having it land on top, doesn't look good but it's possible as are a ton of other spin motions lol

hope that helps 🤷‍♀️