Aoskian Hounds

Though most any breed of animal appears in Sigil sooner or later, very few can carve out a long-term living in the city. Cranium rats and roaches each have their niches, but the night-stalking, two-headed Aoskian hounds are found nowhere else. First bred by the followers of the god Aoskar as couriers that can create their own portals at will, they, along with the Shattered Temple, are the only prominent remnants of the dead god's following. Today they have regressed and appear indistinguishable from primal, feral street dogs.
Some with a more established pedigree have been trained to work as Wildwalkers with corresponding Hound Handlers. With only about a dozen in active service, Aoskian Hound Wildwalkers are primarily used by those trying to hunt down targets throughout the planes as they are known for their uncanny sense of smell to track through and between portals. One can employ and Aoskian Hound and their handler at the Travel Guild in Sigil.