Legendary Blade

Legendary Blades are Blades in Xenoblade Chronicles 2 and Torna ~ The Golden Country assigned to a certain Driver that are essential to the game's plot. They cannot be transfered to other Drivers using an Overdrive Protocol.

Xenoblade Chronicles 2
Both 's and 's Core Crystals are obtained as part of the main plot, but they don't need to be awakened in order to progress the story. They are therefore considered Rare Blades. However, Aegaeon is the only Rare Blade to be tied to a specific Driver.

Torna ~ The Golden Country
All playable Blades in Torna ~ The Golden Country are considered Legendary Blades: