Honestly havent been playing league for to long just decided to make a build for diana as im currently having alot of fun with her this is just a build that has been working for me in recent games.

ps:Save me
pps:Iron is pain

Start either side as Diana has a decnet clear on both sides start with Q first ability and into W second for sustain and damage in the jungle

After full clear attemp to take the scutles or gank(honestly use your own discretion after first clear as you know more than I) ;-;

After Nashers tooth,sorcerers shoes and rift maker have been aquired evaluate the enemy teams damage to decide which tank item to go for first

Whilst building your items try and get objectives aswell as look for ganks on the laners as it will push you through that mid game where diana is most squishy

You are either full build or near full build by now, focus on teamfights and getting those last drags and baron buff as you are now reaching the later stages of the game and any advantage for the team is a step closer to a win.