how many myths are there for merlin the wizard in the story of king Arthur?

There isn't a specific number of myths for Merlin the wizard in the story of King Arthur since different versions of the tale vary in their portrayal of the wizard's involvement and development throughout. However, some of the most popular tales and myths associated with Merlin include his role in Arthur's conception and birth, his guidance of Arthur as a young king, his imprisonment by the Lady of the Lake, and his eventual disappearance or death.