Shadow of Saber

First Fate Zero story I make! It is also at Quotev. I got the idea after seeing some 'Shadow Pokemon' theories and images:) So, pushed over by immeasurable fury, losing her only chance to get the Grail and save Britain, Saber turns into a shadow Servant, a form acquired by extreme anger or sorrow, and is commonly known as Destroyer, that is uncontrollable. Will she be saved?