Source: Mythic Odysseys of Theros

Physical Appearance
Leonin are not native to any land within Felwind, their homeland resides in Arcadia Or perhaps the fabled land of Arborea nobody is exactly sure, All Leonin seen within the material plane are several generations down the line. History of their homeland has faded to old war stories or fairy tales passed down from parent to parent. There are said to be no pure blood Leonin living outside of their homeland, their dominant Genes keeping the heritage alive.

Teo knows little of his supposed home land, Born and bread in Reton his home is with his family and that's all he cares for.

Bigger, bulkier and overall beefy looking Tabaxi as describe by most. more narrowminded folk confuse Tabaxi and Leonin as the same race just male and female variations, but this is stereotyping and assumption and is looked down upon by any decent mortal.

Teo Stands over 7ft tall (2 Meters) Buff and Brawny, Long blue hair and Ash black fur. Giant Markings cover his arms and back, dying the skin and fur off-white. The blue of his hair extends to various patches on his body (inside of ears, chest floof, goatee).
The hair is referred to as a mane by most Leonin and is well kept as a sign of status and proper grooming.

Hands and feet are pawed, with retractable claws like most normal big cats. But unique to Teo is his tail, Far longer and bulkier than normal Leonin tails. Perhaps something genetic or a simple mutation.
His head is also Different from typical Leonin, being similar shape to a Wolf or somewhere in-between wolf and lion, another genetic mutation from crossbreeding most likely.