Act 3 did show us that Void inherently attacks the soul (Why Hornet loses a part of her soul-based Silk whenever a Void enemy touches her). Beyond that though, from what I remember, it would just get Immortality, Bodily Weaponry (Every Void enemy gets one of the Void attacks) and Self-Sustenance. Is that enough for its own page? Though to be fair I haven’t looked too deeply into this atm