The Eternal Sword (エターナルソード Etaanarusoodo?) is an important weapon of immense powers to control time and space, central to the stories of both Tales of Phantasia and Tales of Symphonia. It is also represented in many other games as a powerful weapon in homage to its status in these two games.
Tales of Phantasia
The Eternal Sword, the Sword of Time, is the result of combining three artifacts of the ancient civilizations of Thor, Fenrir, and Odin. The party seeks this goal to combat Dhaos' time-traveling powers, as his castle is protected by a time barrier preventing access. Gathering Odin's treasure, the Fire Sword Flamberge from the Tower of Flames, Fenrir's Ice Sword Vorpal Blade from the Cave of Ice, and Thor's Diamond Ring, the party subdues and forms a pact with the Spirit Origin, who grudgingly combines the three into the Eternal Sword. The Eternal Sword, combined with Origin's power, allows Origin's summoner to view an event from the past. Claus F. Lester uses it to see Milard Rune teaching students. Cress Albane uses it to pin down Dhaos's Castle so that he and his party can storm it and defeat Dhaos. After Dhaos' defeat, the party first uses it to return the present, and Claus takes it back with him to the past.
Tales of Symphonia
The Eternal Sword is a legendary sword, capable of cleaving the fabric of time and space itself. The Eternal Sword was created by Origin, the King of Summon Spirits, at the request of Mithos Yggdrasill, who held a pact with him at the time. Mithos used the Eternal Sword to split the world in two halves, placing each world in separate dimensions tied to each other, via the mana links, in order to prevent the world's destruction. Because the sword was made specifically for Mithos, only those of elven blood can wield it.
During their first encounter with Yggdrasill, Lloyd Irving and friends are almost victims of being killed by the sword but are saved by the Renegades. After the events in their final visit to the Tower of Salvation, either Kratos Aurion or Zelos Wilder will give Lloyd a stone called "aionis", a mineral used to form the Ring of the Pact to allow the sword to be wielded by a human. In order to wield the sword, Lloyd must defeat Kratos in battle to awaken Origin. After the events at Origin's seal, the Summon Spirit gives Lloyd the ability to wield the sword. At the Tower of Salvation, the sword's power divides between Lloyd's Material Blade, allowing the two blades to combine together when Lloyd requires it to form the Eternal Sword. At the end of the game, Lloyd uses the sword to reunite the two worlds, but since the new world would perish without a mana link, both Lloyd and Colette Brunel had to use the sword to germinate the Great Seed and form a new World Tree.
Lloyd's mystic arte Falcon's Crest incorporates the Eternal Sword, manifested into his hands after combining the two blades he has equipped for the duration of the attack. As the Eternal Sword is an integral part of his attack, any games where Falcon's Crest appears also features the Eternal Sword.
Tales of Eternia
In Tales of Eternia, the Eternal Sword weapon is the prize for defeating Cress Albain in the Inferia Arena. It is the strongest weapon that is available to Reid Hershel based on raw attack power, but its Time-elemental affinity makes it ineffective against many significant opponents during the later parts of the game.
Tales of Legendia
The Eternal Sword of Tales of Legendia can be created in the customization shop at Werites Beacon, as a weapon that is available only to Chloe Valens. After obtaining the weapon, the player will receive a skit that involves Chloe saying that she wants to go on journey through time. During the boss battle against Dark Chloe, the clone holds a dark version of the Eternal Sword.
Tales of Innocence
This sword can be found within randomly instanced treasure chests within Guild District 10 and the Forbidden Guild District, and it is Ruca Milda's strongest weapon based on raw attack power. However, the Swordian Dymlos has much more damage potential due to its attached "Critical Knowledge" skill.
Tales of the World: Radiant Mythology series
Tales of VS.
The Eternal Sword appears as a item that appears randomly during battle, offering supportive benefits to the user. When activated by a player, the weapon freezes all opponents in a orb to allows for easier striking. The Eternal Sword also reappears in the game as Cress Albane's ultimate weapon. Although very powerful in both damage and attribute, the sword's overall design has been noticeably altered to follow the original blue colored design from his original game.