By buying those items, you won't need to use your Q, W, or even your R! Just use your E 2 times in a row and then... BAM! INSTA-DEATH! If not, use your Q. I usually get legendary in 10 mins of the game. Before you start playing with these items and making yourself a pro, create a page in your masteries and name is Vi's Mastery Page. Set your masteries as given. Or go to my profile "EnderEncounter" and copy 'Vi's Mastery Page' from there. Why did I choose these items and why you should use them too? I was scrolling in the recommended and my friend told me that they wouldn't make you good enough. So I went on 'All Items' page and Bought the tough items. I was legendary. You could be one, too! You know, you can get up to a Penta-kill with these items if there wasn't anybody to kill steal you.

- Good Luck!