Virga Truebark is a character in the lore of Dota 2.
She is an ancient forest warden who once wielded a powerful rainbow-colored spear that was forged for her. Such was her glory that she once had bards dedicated to her who spun tales about her achievements, who have been dead for a long time already. Yet even without these bards to record her deeds, her legacy lives on in her spear, which is now in the hands of the 
With the Oakfall Horn, Virga Truebark summoned to confront the Iron Princeling. The Prophet fought loyally by her side.
As stated above, she once defied and fought the Iron Princeling. The context behind this is currently unknown.