Hi, PhantomHeartless5, welcome to Dragon Ball Wiki! Thanks for your edit to the List of techniques used by Super Buu page.
Sickle of Sorrow and Chaotic Dance?
Well, Chaotic Dance functions exactly like the move did in Dragon Ball FighterZ where Goku Black creates the rift, has his clones mob the opponent, and then finishes the opponent with a slash from his scythe. As for Sickle of Sorrow, sadly there wasn't a video for this Super Attack. PhantomHeartless5 (talk) 23:12, December 27, 2017 (UTC)