I Am a Mage and I Don't Cast Spells

Because the Dharma Core condensed at birth was only half that of an ordinary person, Tang En, who should have died in infancy, was judged to be unable to resonate with the elements since he was a child, and spent his days in an orphanage in a hazy state. When he was sixteen, a mysterious great magician came and offered to take him on as his apprentice. However, even with all the experts teaching him, Tang En still couldn't learn magic... "He is an excellent magician. He will defeat you in any way - except using magic." An unknown magician said.