First i want to say hello thats my first Build i create and want to tell you my play style about Tristana and think it is not bad i want tell you =)

I pick this Runes because i think they are the best runes for a Ranged Carry

Armor pen for AD Carry and Attackspeed its normal i think

First i want to say: If you are not dominate your lane and dont get your lane so you can buy 3 Dorans Blade because its cheap and effective...you get more life, lifesteal and DMG...its a good choise for bad games =D

Now Concenstrate to get many lasthits it is very importent for this build and try to harrase the enemys with your "E" spell

Jump to them with the "W" spell if you think you can kill them...

if you get slowed stuned whatever use cleanse it help you to escape...=)

I dont know what i can say in this section...but if you have some good items i think you can going help to gank and a little bit jungle

Yeah now its your time! Tristana is a very good late game hero..if you dominate the ealy game you are now a bit feeded an own everyone! but care you are squishy! care!

my experiense are that i am first target play careful and offensive sound crazy but it works =)

so thats my first guide i hope its not so bad and have fun with my build =)