Spirit Shackle
Let me tell you about why this is such a good move and why Decidueye should've gotten to use it in Smash as a Poké Ball
This edgy motherfucker whips out his bow-wings and shoots you not in the chest, not in the head, not in the knee, but IN YOUR SHADOW, and the arrow becomes a SHADOW TOOTHPICK that sticks your shadow to the ground so you can't run away.
This Harry Potter wannabe-looking fucker is coming at you, you try to turn 361 degrees and moonwalk away, but suddenly you can't escape, not because it grabbed you or wrapped your legs or shot your foot or anything, but because it SHISH-KEBABBED YOUR SHADOW, and the ground is the meat, and now YOU'RE dead meat. Think Groundhog Day is bad? Imagine how much worse it is with this edgy anime reject around.
Sure, taking 70% and taking a one-way trip to the boom box from a Revenge-boosted Alolan Whip lariat is obscene, but in some alternate timeline, instead you're getting vertically comboed into oblivion because an owl decided your shadow doesn't get to move today.