Dark Souls bosses are a beautiful marriage of fiction and encounter design. By the time you find Knight Artorias in Dark Souls’ expansion his background has already been well established in item descriptions and scraps of conversation. You know he’s one of Lord Gwyn’s four most trusted knights. He’s an unparalleled master of the greatsword. He is known as the “Abysswalker”. Gradually you piece together the story of a loyal warrior doomed by his own unwavering determination and sense of duty. It’s also a sad story about a man and his dog.