This build is very strong but very hard build. First you must play hero like assassin until you make first 3 items then you become fighter. After you finish all items you will become very good dps but you must be careful to don't die becouse you will lose stacks. It is very good to use decoy to kill first range and mage champions.In team fights you must take take all kills if you can for stacks . You can add your own items in my build but i think this is perfect. If you dont have tank you can make warmmog armor .Ignite is perfect for early kills adn flash is good for escapes and gangs.