Excalibur

The Excalibur is a recurring weapon in the Mana series.

Final Fantasy Adventure / Adventures of Mana
In Final Fantasy Adventure and its remake Adventures of Mana, the Rusty Sword is obtained after defeating Ifrit in the Undersea Volcano. Following the trip through the Sanctuary of Mana, Sumo will witness one final vision of Fuji's mother. As he presents the blade, it transforms into Excalibur, the strongest sword in the game.

Secret of Mana
The Excalibur can be forged once the party finds a Sword's Orb inside a treasure chest in the Northtown Ruins.

Trials of Mana
The Excalibur is a weapon exclusive to Duran's light classes that can be bought in Pedda.