For 10 points, name this horned animal, which is hunted by hounds.
When Finn Maccool met his wife, Sadhbh (SAHV), she was in the form of this animal. Four of these animals attack the World-Tree Yggdrasil (EEG-drah-seel) in Norse myth. In Greek myth, Heracles pursues one of these animals for a year as one of his labors. That Ceryneian (keh-rih-NAY-uhn) one of these animals belonged to Artemis, whose chariot is pulled by these animals, and who turns Actaeon (ack-TAY-on) into one of them. For 10 points, name this horned animal, which is hunted by hounds.
When Finn Maccool met his wife, Sadhbh (SAHV), she was in the form of this animal.
{deer} [or {harts}; or {stag}]