-Good setup for mutliple ad and ranged champs.

-Must get all attack damage/ attack pen amplifiers.
-Must get Mods for Joe Chill's(crit damage), Velocity 9's (crit chance), and Crossbow (attackspeed).

-For maximum damage get all items with attack and pen.(after your core items of coures) [Claymore, Coda, and Axe]. But with this you are very squishy so it is a snowball build. If needed get items like Beowulf to help against pcds or claw of horus for bruisers or adcs.

-Try to sneak up on characters when they get low very early. Snowballing will get you fed but try to make sure the focus is on any other member of your team. (It sounds harsh, but you are the ranged attack damage carry, and the most important thing if for you to stay alive. second most important is to get fed.) 


-Very hard for tanks to build Attack Armor against critical damage, so late game tanks will not be as much of a problem, unless they build entirely armor(but hopefully your pdc will 2 hit him then) or health. Avoiding them and staying alive early will be crucial in an effort to counter their tanks late game. A 'Borg with 0 deaths is a lot scarier then a 'Borg will a couple kill and deaths to match. (usually they get focused harder too so if you can stay alive it proves even more skill.)
 

-Stay on par in farm and minions. If early game you are having trouble snowballing play passive in lane and kill as many minions as possible; once you get all 3 core items you will be surprised on how you gameplay and possibly even score will improve.