The Falchion is a sacred and legendary sword passed down through the royal bloodline of Ylisse, the kingdom in which Chrom serves as the Exalt. It is said to be the only weapon capable of defeating Grima, the Fell Dragon, who poses a grave threat to the world.
The origins of the Falchion can be traced back to the First Exalt, a hero named Marth, who wielded the sword in ancient times. Marth fought against the forces of evil and saved the world from destruction. He was guided by the divine dragon Naga, who gifted him with the Falchion to aid him in his quest.
Over the generations, the Falchion was passed down from one Exalt to another, entrusted to the rulers of Ylisse. Chrom, as the current Exalt, inherits the Falchion and carries the weight of his ancestors' legacy.
The Falchion possesses unique properties that make it a potent weapon against Grima. It has the ability to deal effective damage against dragons, who are vulnerable to its power. Additionally, the sword has the power to seal away Grima's essence and weaken his influence.
Throughout Fire Emblem: Awakening, Chrom wields the Falchion in battles against enemies and plays a pivotal role in the conflict with Grima. The sword becomes a symbol of hope and resistance against the looming darkness, embodying the lineage of the Exalts and their duty to protect the world from destruction.
It's worth noting that Chrom's Falchion is not the only version of the weapon seen in the Fire Emblem series. Different games feature variations of the Falchion, each with its own backstory and significance within their respective narratives.