The Sylph, or Blue Fairy, is a Fairy unit color variant available in Winter.
Blue Fairies, or Sylphs, would drift slowly and alone upon the fall of snow in Winter. Sylphs were said to be introverted and lonely, but possessed a curiosity and intellect far greater than others of their kin. They were associated with wisdom, intellect, and study. A Sylph's wings almost always looked like a Moth's.