This is my first build. I have been playing for about 1 year now with a lot of games under my belt and this is what finds works for me
so hopefully it can help you...
I find that if you follow this strait forward and simple build and put all of this together your attack speed and critical damage will be ridiculousness :)

you will find that you need to play offensively with this build as you will rely a lot on your life steal so the build is for speed/life steal/critical damage that being said in some situations your best defense will be offense and who knows you might make a kill or assist in one, but that's only when you see that you not going to get away, (if you can) use the 90 cal and hot foot it out of there

here I like to add to the goal of archiving the most critical damage and attack speed as possibly and to end it armor penetration now thats smart...

i know a lot of other guys will say rather go for some mana regen and health and armor, i say go for the kill don't wast time fafing with mana and stuff

remember the point is to kill them first

i have stated it before no time for fafers

well ofcos you need this to be offensive cos that's what this builds about :)

i see a lot of people like to using different things here so here is what I think offensive is

I tend to stay away from traps till the end i find 90 cal and peacemaker a lot more effective early game to make them kills

the traps are very good but i don't find time for them so i keep it simple and attack with the peacemaker and re teat with the 90 cal but the 90 cal is also very effective in attacking as well

i like exhaust and teleport
:exhaust to make some quick kills and
:teleport cos is a long way back to the action

i hope some of this you like and find useful please give me some feed back and i will be making some more builds soon peace.....!!!!!! :)