Star Dragon Sword

The Star Dragon Sword (星辰剣, Seishin Ken, Zodiac Sword) is a supporting character in Suikoden, Suikoden II, and Suikoden III. The Star Dragon Sword is an incarnation of the Night Rune and is known for slaying vampires.

Suikoden
"I was just getting tired of sleeping. I'll join you on your mission. Pull me out."

- Star Dragon Sword

The Star Dragon Sword is an incarnation of the Night Rune that resided in the Cave of the Past at Qlon Temple. When Hero (Suikoden) and Viktor travelled to the Cave of the Past, they came upon the Star Dragon Sword.

Teh Star Dragon Sword spoke to them, asking Viktor about his mission. When the he learned that Viktor aimed to kill Neclord, the Star Dragon Sword, tired of sleeping, told Viktor that he would join them.

Wielding the Star Dragon Sword, Viktor was able to defeat and ostensibly destroy Neclord, as the Star Dragon Sword was an incarnation of the Night Rune and Neclord was merely a servant of the darkness.

For the rest of the Gate Rune War, the Star Dragon Sword remained with Viktor. Following the end of the war, the Star Dragon Sword was presumed missing, alongside Viktor.

Trivia

 * The Star Dragon Sword's name would be more properly translated as the Zodiac Sword. The Star Dragon Sword gained its name through Konami's translation of Suikoden, when they translated the kanji making up the name of the Star Dragon Sword/Zodiac Sword individually - thus 星辰剣 became Star (星) Dragon (辰) and Sword(剣), rather than Zodiac sword. The name Zodiac Sword remains popular in the fan community, however.