Osgar

Osgar was a Sorcerer who had been summoned by The Triple Goddess to deliver an important message. He used his Magic and powers to kill Sir Ranulf and other Camelot knights in order to gain Arthur's attention. When Gwaine and Elyan tried to capture him, he used a pushing spell to knock them out. He then approached Arthur quickly before his death and delivered the judgement of the Goddess, speaking his last words.