As masteryi, A fully maxed out Ultimate r will allow Master Yi to mow down the enemy team. This is highly beneficial when it comes to cleaning up late-game fights.

His damage will be massive during the late game. He can keep on all-in'ing enemies as his Ultimate r will be up quite frequently.

His team fighting is on another level during this phase of the game. This means that he will be the pivot for his team's success, and his e usage will determine the game's outcome. As masteryi, A maximum of Ultimate r will allow Master Yi to mow the enemy team. This is very beneficial when it comes to cleaning up late battles. His damage will be massive during the end of the game. He can continue on all enemies that his Ultimate r will rise quite frequently. His team fight is on another level during this phase of the game. This means that he will be the pivot for the success of his team, and his use will determine the result of the game.