Alright guys so I'm back with a new AT, and I've named it the Pocket Pikmin. So what it does is it makes one the first Pikmin in your lineup invisible while keeping it active. It is canceled when you use any smash or aerial, as well as side-b, up-b and grab. While the Pikmin is hidden you can use all other moves I have listed without cancelling this.
Now for the down side, it is semi-situational and pretty difficult to perform consistently. To have it happen you must drop from the ledge right as a Pikmin (Usually one running back to you from on stage) jumps into your lineup and disappears as all Pikmin do while Olimar is on the ledge. I'm assuming this happens, because right as you drop from the ledge the Pikmin is storing itself on the ledge where it should be, and it gets glitched out. You'll notice if you up-b with this active a Pikmin will fly super fast from the ledge and into the up-b. I'm not sure of the exact timing window, but it seems no more than a few frames at most. You can do it with all colors, and I feel it could be a valuable tool in throwing your opponent off since they will think you have a different Pikmin in front since the cursor moves into your next Pikmin. Even if you whistle and the cursor bounces between the 2 you have active the hidden one will always act for the next attack. You can also pluck Pikmin while this is active allowing you to really throw your opponent off.
Below I have a video showing how it is performed. It is recorded off my phone so just try to ignore the mehh quality, and also sorry about the shaking I have pretty unsteady hands. It's about a 5 minute video, because I mess it up quite a few times so I'll include time stamps to show the 4 times I get it. One last note, I find it most difficult to do with purples, but they could just have a different timing.
Time stamps
0:18
0:47
3:33
4:19
P.S. I also found out you can cancel the landing animation with your up-b with a smash if you do it right as Olimar slides into the ground. So there's that for you guys as well.