Titan, the Grovewatcher

"Titan is the creator of the ground from which all life springs. He gifted Aukana with plants and minerals, allowing all who seek the bounty of the land to prosper. It is believed that he constantly wanders, causing the wilderness to flourish unhindered wherever he goes. Stories are frequently told of people that have become lost deep within forests or underground suddenly finding a path which leads them to safety; all attribute these miracles to Titan. When he has made public appearances, he has been noted as kind and caring to all. He is noted in appearance by the plant life which seems to be growing out of his body. Those who worship Titan tend to plant new seeds as a sign of devotion, and will often mark their homes with the sign of Titan to show they will care for any travelers in need. His symbol is a green triangle with a white zigzag at the top to represent a snow-topped mountain.""-From the Rulebook"

With the Vir
The first time we encountered the Vir with Titan was when he lead us in a ritual to contact Iri Kara's spirit. He later identified the roots growing around her tree as Vir Roots. We have yet to see him directly engage the Vir in a fight alone, and it is unlikely his Earth magic would do much to them given their resistances. All the same, it would likely be wise to ask him if he knows more about the Vir if the opportunity arises.