Darkin Varus Legendary Skin

With Kayn's release giving more detail about the Darkin and their origins, we also got to see that Varus' bow is a Darkin! Asking for a completely new Voice Line thing for Varus I feel though would detract from the theme that Kayn has (Two minds battling for a body). Instead I feel this be a great opportunity to give our favorite emo archer a new skin that capitalizes on this new lore. Who is his bow? What are they like? Whats their name? I feel there are many chances for creativity down this direction.