Leaf is arguably one of the best players in the world if not THE best player itw and he has been for a long time.
His aim, movement and gamesense is the best in all of NA and even rivals other players like aspas. But what sets him apart from others is the huge flexibility that he has. He can play literally anything unlike other players. For example compared to chronicle his agent pool is far larger. Leaf also provides value off the game by antistrating all his opponents and developing comps and strats. This kind of value is never seen in any duelist players like derke, aspas, foxy9 etc
Even before franchising era he has been top 10 itw and was only held back by his teammates such as Curry and Vanity.
Without a doubt C9 will win Tokyo and show that the results from Lock//in were a fluke (single elim btw)