This orianna build is ment for fast demolishing top lane and after that roaming around. This build allows you to slow your enemyes, constantly boke team and take them down with slows and ur movment speed. The moving speed is the edge of orianna. With trinity force you are fast enough and allso slow your enemyes on autoattack, using disonance will give you great boost to flee from fight or slow down your enemyes. When you are fighting aginst melee fighter then dont throw the ball around unless he gets too far from you, wait untill melee chempion jumps on you, shield yourself, use disonance and when the enemy starts to run activate shockwave. It is easy to kill melee chempions with orianna, making enemyes fear to jump on you, but at the same time holding them away from the farm by pokeing.

The rune choise is hard for this build. I decided that its best to go with AD and armor penetration, but i cannot ignore the fact that oriannas spells need CD to constantly shield yourself or you teammates and speed up or slow down players.

Masteries help you to provide you with the AD edge in early game, and taking swiftness from utility allows you to poke constantly your enemyes and run away easily from allmost all enemyes.