Sir Tain is a compact gnome standing just over three feet tall, with a square jaw, bright hazel eyes, and a neatly braided russet beard threaded with tiny brass rings. His chain mail has been carefully tailored to fit his small frame, and his shield bears a painted golden hinge over a field of deep blue. He carries himself with surprising ceremony for someone so short, planting his boots firmly and making every introduction feel like a formal military inspection. A narrow leather strap around his wrist holds a collection of tiny brass washers, which he checks whenever he is thinking.

Sir Tain is disciplined, courteous, and intensely practical. He speaks in clipped military phrases until someone is hurt, at which point his voice becomes unexpectedly gentle. He notices exits, load-bearing beams, and who has been left out of a conversation. Though he claims to dislike improvisation, his battlefield plans routinely involve ingenious gnome-built solutions and improbable uses for ordinary equipment.

Sir Tain was raised in a bustling rock gnome foundry beneath the foothills, where his family built clockwork surveying tools, mining braces, and little brass devices that made dangerous work safer. He was expected to become an engineer, but during a border conflict he watched a local militia unit hold a bridge long enough for hundreds of civilians to escape. Tain enlisted the next morning. His size made him easy to underestimate, and his patience made him difficult to break. He learned to fight from beneath shield rims, to direct larger soldiers through narrow tunnels, and to treat every formation as a machine whose weakest gear must be protected. Years later, while guarding a field hospital, Tain found a dying chaplain still trying to bless frightened recruits. The chaplain entrusted him with a battered holy symbol and told him that law was not merely obedience, but a promise that the vulnerable would not be abandoned. Tain took those words as his oath in everything but name. Now he travels as a newly awakened paladin, carrying the habits of a soldier and the conscience of a gnome artificer. He seeks the officers who ordered the bridge abandoned, believing justice must be precise enough to name the guilty and merciful enough to protect everyone else.