Shiryu uses the Golden Sword from the Libra Cloth to shatter the ice coffin and free Hyoga, who is barely alive with a faint heartbeat.
In Episode 59 of the original Saint Seiya anime, titled (Italian title: "Ritorna la speranza" ), the story focuses on the Bronze Saints' arrival at the House of Libra during the Sanctuary arc. Key Events of Episode 59 SaintSeiya_Ep_059_ITA.mp4
Seiya, Shiryu, and Shun arrive at the House of Libra, where they are shocked to find Hyoga (Cygnus) encased in an indestructible ice coffin created by his master, Camus of Aquarius . Shiryu uses the Golden Sword from the Libra