Zed and shadow techniques

I’m curious we’ve seen The Order of the shadow create shadow clones, blink between the clones, walk through walls, and idk how to describe how Kayn and Zed’s ult physically work but they are similar

So when Kayn becomes the shadow assasin he gains the ability to create a clone with his w

So does that mean as a shadow warrior in the order you learn more techniques as you rank up in the clan?

So does that mean Zed could theoretically also phase through walls like Kayn? Or is Shadowstep something Kayn made up on his own?

I’ve always had a debate on who is stronger Zed or SA kayn

Zed is supposed to be Master of Shadows so he should be an expert on the art itself or is Kayn the newest generation of a master?

Comment below on who u think is stronger Zed or Kayn?