Blaetmhas Sterrundsyn descends from a long line of strong and fearless pirates, his mother no exception. Abandoned by his father before he was born, Blaetmhas was raised by his mother, a pirate of great strength and fortitude known as Sterrund; while not her birth name, she had earned it through her actions. Born on the open sea, freedom-loving Blaetmhas lived on his mother's ship under the watchful eye of both her and the Navigator; he looked up to his mother and strove to be like her. His life changed forever when, as a young boy, Sterrund's ship was attacked and destroyed by Leviathan. Despite a brave effort to repel the primal, all on board lost their lives. All except for Blaetmhas, who was injured but alive. Having been under Llymlaen's loving watch, Blaetmhas was soon found unconscious on the shores of Vylbrand. From then on, Blaetmhas grew from boy to man on the streets of Limsa Lominsa, doing what he could to continue the strength and combat training his mother had started. Once he felt he was ready, he became an adventurer, eager to do great things in pursuit of power and glory. Blaetmhas works hard to maintain and increase his physical strength and ability; although proficient in the use of firearms and melee weapons, particularly the axe, Blaetmhas struggles with the use of magic. Weaknesses include alcohol and beautiful women.
Blaetmhas is something of an anti-hero. He follows his own moral code and breaks the law whenever it hinders him. He generally strives to protect the good and those he loves while fiercely destroying evil. Blaetmhas' bloodlust drives him to kill, but he does not kill indiscriminately. In order for him to harm those who are good, it must either be unavoidable, deemed necessary, or some significant good would have to come of it. Blaetmhas keeps his law-breaking and other dark aspects of himself a secret from others.