Mythril Blade

A Mythril Blade (ミスリルブレード, Misuriru burēdo^?) is a Long Sword-class weapon Artifact that can be randomly forged in Golden Sun: The Lost Age.

In Golden Sun: The Lost Age

Mythril Blade
Visual effect of Lethe Albion
In-Game Description
"Long Sword: Unleashes Lethe Albion" (TLA)
Trade Info
Weapon class	Long Sword
Buy value	14600
Sell value	10950
Artifact?	Yes
Statistic Boosts
Attack Boost	160
Unleash effect
Effect name	Lethe Albion
Extra damage	56
Side effect	May seal the target's Psynergy
Acquisition
• Forged from Mythril Silver (TLA)

One Mythril Silver can be Scooped up in Loho after using the Magma Ball from Magma Rock to add the Cannon to your ship. Then, once you gain the Teleport Lapis in the final storyline dungeon, Mars Lighthouse, you can use it to gain access to the optional Yampi Desert Cave, where you can both Scoop up another Mythril Silver and make it randomly drop from the local Soul Army monsters (its rare chance to drop Mythril Silver quadrupling to 1/32 when it is felled using the attack effect of an offensive Jupiter Djinni).

Fittingly for its late availability, Mythril Silver can be randomly converted into one of several pieces of excellent late-game equipment at Sunshine, the Blacksmith in Yallam. (These other pieces are the Mythril Armlet, Mythril Clothes, and Mythril Helm, all of which add to the proc rates of Unleashes, and the Psychic Circlet, which restores 12 PP per turn.) However, when it comes to the weapons it can create, the Mythril Blade is largely seen as the "weak" outcome of the forging process because, while its probability of being forged is at a relatively high 20%, the stronger Levatine sword can only be picked with a 10% probability.

The Mythril Blade can be a solid stopgap weapon on the way to the game's ultimate weapons (which have damage-multiplying Unleashes) if one is forged from the first Mythril Silver found in Loho. If you are not playing with a password, one of these endgame-tier weapons, the Mercury-aligned Masamune, will not be available, which would make the Mythril Blade last longer as a good fit for the warrior-style Mercury Adept Piers. Even if the Masamune is available, it is worth keeping that on one of the more powerful Venus Adepts until weapons like Sol Blade and Tisiphone Edge can be found for several party members, in which case Piers can still wield a Mythril Blade to solid effect until he can inherit the Masamune for himself.

The Mythril Blade's Unleash effect, Lethe Albion (レーテアルビオン, Rēte arubion^?), adds 56 flat damage, aligns the damage overall to Mercury, and has a 55% chance to apply a temporary Seal on the target's ability to cast any PP-costing abilities it may have. (Lethe Albion displays the user summoning a rushing river that flows through the target as it is engulfed in several overlapping, glowing blue images similar to Psynergy Seals.) Interestingly, a different long sword that is randomly dropped from the Lesser Demons in Magma Rock, the Rune Blade, is virtually identical to this weapon in terms of Attack, added damage to its Unleash, and its Unleash's capacity to Seal Psynergy, with the only difference being that the Unleash is aligned to Jupiter instead. (The only other weapon capable of sealing Psynergy, besides the early-game Psynergy Rod, is the midgame-tier Glower Staff, which can only be wielded by caster Adepts.)

Though the rarer Levatine is largely seen as an improvement because of somewhat higher stats, it serves a fundamentally different function that nonetheless somewhat falters in the face of the aforementioned damage-multiplying ultimate weapons. The Levatine has 13 more base Attack and 10 more damage added by its Unleash, but its Unleash is Mars-aligned and has a 50% chance to ignore half the target's Defense instead of applying Seal or some other secondary condition.

Etymology

In Greek mythology, Lethe was one of the five rivers of the underworld, and those who drank from it experienced complete forgetfulness. Lethe was also the name of the Greek spirit of forgetfulness and oblivion, with whom the river was often identified.

Albion is the oldest known name of the island of Great Britain. It derives from the Latin word albus, which can mean "white", "bright", or "clear".