How do I play rivershen?

Original post here: http://boards.oce.leagueoflegends.com/en/c/gameplay-strategy/yQRxTiIz-can-someone-teach-me-how-to-rivershen

However I know that this is where the majority of rivershen players will be congregating so I need your help.

https://www.youtube.com/watch?v=udBa7LCcNGQ

Rivershen was likely community created on some subreddit that no one has heard of but skilled and aggressive players can pull it off.

I am not really either of these so can I get any advice from someone who actually plays this?

ty

EDIT: http://imgur.com/iJVnXSx