Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
1) You must carry out the skill sequence exactly as I said, it's not important Hawkshot as it's just like Clairvoyance.
2) The masteries 21 on attack, about the other 9 points there is no problem, but i prefer utility for better spells.
3) The queue that you will buy your items must be carry out exactly as the skill sequence. In the end, if everythng goes right, sell the catalyst and Berseker's Greaves and buy one more Phantom Dancer and one Stark's Fervor
4) About the runes I am not sure, but i prefer these
5) i prefer Flash for escaping and teleport for reduce the time of long distances.
When I tried this build first time i had done 26/4/19, if I was lucker i would have done 45 kills!!!
I see this build first time in this video, from an expirience player, Zasteo.
It really works for me. I hope have helpe you as more as I can.
Sorry for my bad English.