Board Thread:Versus Debates/@comment-34752936-20180221075521/@comment-30323490-20180301163028

Actually, he sent a lot more than 8 or 20. The Manga might not do justice to it because it was only half of panel and didn't show the whole technique, but the anime showed maybe hundreds of shadow clones emerging. Also Naruto use the multi shadow clone version, so it's quite obviously that he conjured a large number of shadow clones.