Board Thread:Theories and Speculation/@comment-32742265-20180119154238/@comment-6769189-20180211104107

@Naruto10647: that has already been established multiple times in this forum

TheKillman: Except he pulled off Dancing Leaf Shadow without practice.

Sarada used shadow clones without practice.

Madara pulled off wood clones without practice.

Konohamaru explains that it analyzes and copies. There are multiple instances of instant copying or copying without practice.