Audrey's role in the game is to support her team from a safe distance, giving buffs to certain heroes that already have a big impact in the game and kicking it up a notch. Attaching her Conduit Staff on her carries will give them bonuses to their stats giving more DPS and more mobility. She can also enable other spell-casting supports by giving them a damage boost and also extra mana regeneration.
She can also be used offensively by decreasing the DPS of the enemy team's carries and punishing front lining tanks with Unlocked Potential. Combining her ultimate with initiators and mobile heroes can create devastating combos that can burst multiple heroes down. Conducting Field can also disrupt enemy spellcasters by burning their mana which in turn can be used by her team's spellcasters.
Items:
Early/Mid Game
Tranquil Boots - Provides good health regeneration and Movement Speed for survivability and positioning.
Urn of Shadows - Great item for supports in general. Both for healing and dealing more damage early.
Eul's Scepter of Divinity - Provides Movement Speed and Mana Regeneration, also allows setup for Conduit Overdrive (take note that Eul's will dispel Conduit Staff)
Force Staff - Great positioning item for supports in general.
Glimmer Cape - Great survibability item for supports in general. Use to break vision to cast Conduit Overdrive safely.
Late Game
Scythe of Vyse - For focusing down heroes late game. Can also be used as setup for Conduit Overdrive.
Aghanim's Scepter - Increases the value of Unlocked Potential! exponentially especially when buffing/debuffing multiple heroes.
Octarine Core - Decreases cooldown of abilities, pairs well with Level 25 Cooldown Reduction talent.
I really enjoyed looking at other people's concepts here and with the contest coming up, I figured why not put some ideas of my own.
Feedback is appreciated especially tips on formatting and balancing.