This for a more skilled player, you have to know when to use Q good. Also this guide is mainly for offlane weavers.
The items is mainly up to you, given what you are up against. If you are reading this guide tru your browser, you can check an examplegame of mine with weaver: http://dotabuff.com/matches/152735965. Where i go mid and change up some of the items. Going diffblade as seconditem.