Guru Clef

Clef (クレフ Kurefu) is the chief of all sorcerers in Cephiro, and was formerly Princess Emeraude's attendant. In the first season of the anime, he is turned into stone by Zagato, shortly after being introduced to the three girls in the first episode, but he managed to fight the spell and communicated with them through Mokona. In the manga, he is referred to as Guru Clef, and is not turned into stone.