On My Etsy Shop: Signed & Matted 5x7 The Morrigan $20. The Morrigan (also known as the Morrigu) was the shape-shifting Celtic Goddess of War, Fate and Death. She presided over rivers, lakes and fresh water, in addition to being the patroness of revenge, night, magic, prophecy, priestesses and witches. Her name is interpreted in various forms..."Great Queen," "Phantom Queen" or "Queen of Demons." She was said to hover over battlefields in the form of a raven or hooded crow and frequently foretold or influenced the outcome of the fray.