As diana, She should start ganking as soon as she hits level three as her burst damage is relatively high, which will allow her to quickly get a Flash from the enemy champions' side.

Getting her Ultimate R will make her quite dangerous in fights that happen around choke points. This helps her teammates a lot as they can easily collapse on the enemies Diana has Ultimate R'd.

Her first item will allow her to get a massive boost in her overall damage. This will let her win duels with ease. She will now invade the enemy Jungle, provided the allied laners have prio in their lanes.         As diana, It should start to crash as soon as it reaches level three that its burst damage is relatively high, which will allow it to quickly get a Flash on the side of the enemy champions. The getting its Ultimate R will make it quite dangerous in the fights that occur around the bottlenecks. This helps its teammates a lot because they can easily collapse on the enemies Diana a Ultimate R'd. Its first element will allow it to get a massive increase in its overall damage. This will allow it to win duels with ease.