Clow Reed

Summary
Clow Reed (クローリード) is a fictional character created by CLAMP that appears in Cardcaptor Sakura, xxxHolic, and Tsubasa Reservoir Chronicle. He is known as the greatest magician of all time, as he draws his magical powers from his half-European, half-Chinese heritage. He is the creator of the Clow Cards and their guardians: Cerberus and Yue.