Because of plot he'd lose, because his eyes were still recovering from having Itachi's transplanted into his. If he had EMS, I could see him winning, very high difficulty.
The ones to watch are Shikamaru and Neji due to intelligence, Sai due to skill as an assassin, and Naruto for obvious reasons. The rest he could pick apart if he got them in brief 1v1 moments, which is possible with the right strategy.
K11 stomp if this is Hebi Sasuke.
kirin GG Manda GG
He can take out multiple opponents using chidori stream.Nonsense again. Choji, Kiba, Ten Ten, Ino and the others deal with Manda. Unless you foolishly think Manda kills all at the same time.
Rock Lee and Neji are enough for Hebi Sasuke with Sakura there to heal them if anything. No to mention either of the 2 have a chance of winning against him in a 1v1 without Manda. Kirin takes time but of course fanboys of your kind think it's instant.