Sword

 Sword is a member of The Flame, an antagonist of the Lotus Progeny.

Sword is the identity he is known by within The Flame organisation, however his birth name is Piandao.

Description
His operative name, Sword, aptly describes his abilities; Sword fights with a Jian blade.

A man with a strict honour code, Sword firmly stands by his oath to the Flame. He is ruthless to opponents or allies who break their word.

Abilities
Sword fights with a Jian blade. He is exceptionally agile and is also fairly strong.

He is capable of taking on multiple opponents at the same time, as well as single combat, despite whether they fight with weaponry or bending.

Backstory
Sword first appeared in Omashu, alongside Shadowflame and Archer. He defended his mentor, even when Shadowflame threatened to kill two young waterbenders, Kaidas and Taidan; even when the latter child was in fact murdered. He crossed blades with Yasuo, who recognised some of the unique sword forms that Sword used.

Sword sought out and attempted to duel Yasuo. When others interfered, he called off the duel, delivering a killing blow to his ally Archer who had attempted to interfere and kill off some of the Lotus Progeny who were watching the duel.

After the death of these two operatives, Sword became second in command of the Flame in the area, with a ship of soldiers under his command. The Flame converted an Earth Kingdom village to the Fire Nation, and they began to mine the coal from the area. Here he encountered the Lotus Progeny twice more, first allowing them to leave, and then arresting them after they brawled in the streets and a citizen of the village was killed.

Aboard the ship where they kept the Lotus Progeny, Sword experienced a shared vision with the captives, where his identity as Piandao, brother of Yasuo and Xian, was made plain. After this, he gave Fi his word that he would be her advocate.

The village of "New Azulon" put the Lotus Progeny on trial. When the magistrate and his Flame advisor Litklo broke their honour and ignored the verdict of the people, Sword took it upon himself to free and fight alongside the Lotus Progeny. Sword killed Litklo, his direct superior, with the words "My name is Piandao."

Since then Sword has ostensibly been working to lead the Flame back to become a part of the White Lotus, as they were always meant to be.

Relationships
Sword is the protege of Shadowflame ; the member of the Flame that recruited him. Shadowflame knew of Sword's honour code and made him swear an oath to the Flame. He used this to manipulate and use Sword to his advantage; to further the goals of the Flame. It was not until the Lotus Progeny encountered Sword in the spirit world that Sword began to question to whom his oath truly was.