Average height guy who wears a lab coat
Stands a middling 5’6 and wears khakis and flannel shirts, but you usually see him in a lab coat with a stethoscope around his neck.
The Tenrai family have not been lucky enough to produce that many mages in their lineage, and the ones that were born met with tragic ends early in life, usually from a mysterious illness. Lucas is the first one to actually live to adulthood as well as have magic. He spent his teenage years learning some air and spirit magic from books and schools, during this time it was discovered that he had a natural affinity with water and ice, without any training, he was able to use some powerful spells.
After his initial training in magic he went to collage to become a doctor, and has just completed his residency.