This guide is really good , espeacially if you want yourself alive while atacking many enemies.
You get 40% life steal which is very good when you atack other powerfull enemies , also you get 105 ability power which helps your Medidation and Alpha Strike. also with the atack speed and atack power that you gather from the items , those will be quite in handy for the ultimate as you can chase them all around the map.

Well , good luck at following the guide.