During his first appearance, he donned a small, light-colored earring on his left earlobe, which takes the shape of a stylized snowflake. After joining Lamia Scale, Lyon had the guild stamp imprinted on his right pectoral, in the same spot where Gray Fullbuster has his own Fairy Tail stamp. Upon Team Tenrou's return seven years later, the only difference in Lyon's look is reappearance of an earring on his left ear, larger than his first one and seemingly consisting of a small chain as well. When first introduced as “Reitei”, Lyon wore an imposing outfit which initially hid his identity. He sported a large white cape, with a wide collar, golden edges and fur trimmings over the shoulders, held closed by belt, adorned by a stylized snake with rectangular coils, and its corresponding buckle, with more belts and buckles, placed a few centimeters away from one another and below the first, being left untied. Below this cape, Lyon wore a blue, high-collared tunic with golden edges, reaching down below his knees, with the part coming down from below the simple belt tied around his waist having an opening in the front. The tunic sported a large, dark cross-like design on the back, and is worn over a dark shirt, which was partially revealed and torn as a result of Lyon’s fight with Gray. Lyon’s outfit at the time also included baggy dark pants tucked inside armored greaves, composed of different plates and sporting knee caps, and an ornamental helmet obscuring most of his face. Bearing resemblance to a skull, this helmet sported a front part which covered Lyon’s upper face, revealing his mouth and nose, with a line of sharp teeth beneath it, and Lyon’s eyes not being visible from the eye slits of the mask, which was adorned by a spiraling motif. The helmet also came equipped with striped horns pointing frontwards and with a large crest made of spiky fur, falling on Lyon’s back.
After joining Lamia Scale, Lyon switched to a less imposing, yet still showy attire. He sported a white jacket reaching down below his waist, distinguished by large, dark fur trimmings around the neck and cuffs, together with similarly dark belts circling each of his arms, one above his elbow, and another above his furry cuff. Below this jacket, Lyon wore a high-collared tunic reminiscent of his old one, but much shorter, just reaching down to his waist, and colored extremely dark purple, with lighter purple edges. The most distinctive piece of his outfit at the time were his pants, which appeared to be composed of snakeskin, with a pair of dark belts circling his thighs and an intricate dark pattern adorning the front of each leg, this consisting of many rounded, rhomboidal figures linked together, each possessing a smaller figure in its center. Lyon's pants were held up by a simple light belt with a plain rectangular buckle, and his outfit was completed by simple dark shoes with lighter soles. As Lyon welcomes Team Tenrou from their seven years of disappearance, he donned a new outfit. He retains a short, high-collared tunic, which is now dark in color and has light edges and cuffs, together with many decorative motifs on the lower part of the chest and sleeves; unlike before, the tunic's collar is now left slightly open. Lyon doesn't wear a jacket anymore; instead, his shoulders are covered by a dark mantle with a high collar and light, jagged edges matching his tunic. In addition, he appears to wear dark pants with light parts circling his thighs and gray boots.While typically cold and composed, Lyon had also once been ambitious to a fault, and takes his goals and dreams extremely seriously. He is very proud of his own powers and takes immense pride in possessing them. This had led him to attempt to revive the Demon Deliora, in hopes of surpassing his teacher Ur, who gave up her life to freeze the Demon indefinitely. Lyon also tends to get carried away by his emotions as well. After joining Lamia Scale, he has loosened up significantly, but still retains his impulsive nature. During the Allied Forces' meeting, he rushes off after Natsu Dragneel into the woods and towards Oración Seis' presumed headquarters, without even a plan of attack. He is also shown to be slightly arrogant, as shown in the Grand Magic Games Arc when he is talking to Sherria about his teammate Jura. However, when it comes down to it, Lyon is extremely quick witted and observant. He was able to discover Racer's weakness by watching the birds fly in the sky. He, much like Gray in this regard, ignored Sherry's obvious affection for him. He has also been known to have a grudge against Gray. He considers himself to be Gray's superior and tries his best to prove his superiority over him.
