I was pretty surprised by that line calling Ino-Shika-Cho one of the top legends, it felt a little over the top to me, but man, seeing Asuma just standing there as an enemy felt genuinely chilling. It's such a cruel twist for them to have to face him like this, and I can only imagine the kind of mental fight Shikamaru, Ino, and Choji are going through having to confront their old sensei.