Complex sentence: The Blue Blob came about in 1985 when the spirit squad coordinators realized that a more audience-friendly mascot was needed as the musketeer mascot, who sported a handlebar mustache and a prop sword, scared younger spectators.
Split into simpler sentences: The Blue Blob came about in 1985 when the spirit squad coordinators realized that a more audience-friendly mascot was needed. The musketeer mascot, who sported a handlebar mustache and a prop sword, scared younger spectators.