Masamune

The Masamune is a Celestial Weapon, and it is the most powerful weapon for Auron in the game.

You must obtain the Celestial Mirror before you can obtain or create any of the Celestial Weapons. Use the link below for more information on how to obtain the Celestial Mirror:

To create the fully powered-up Masamune, you will need to obtain the Masamune weapon itself first, then use the Mars CrestSaturn Crest and the Mars SigilSaturn Sigil to power it up.

Obtaining Masamune

The first step to obtaining the weapon is to obtain the Rusty Sword. Make your way to the Calm Lands and then north into the Gorge.

Head down towards the entrance of the Cavern of the Stolen Fayth and follow the trail off to the right from here. The Rusty Sword is located at the end of the pathway. Use the screenshots below to help guide you.

Now you need to find the Statue of Lord Mi’ihen.

Take the Rusty Sword to Mushroom Rock Road. Note that you cannot select “Mushroom Rock Road” from the airship menu, as this will lead you to the secret area where Godhand is or was located, and you cannot get to the Statue of Lord Mi’ihen by entering from the Mi’ihen Highroad.

If you enter from the Mi’ihen Highroad, you will be ambushed by the Dark Magus Sisters. Check out the Dark Aeons subsection of the Side Quests section for more information.

Travel to the Djose Highroad instead. Walk westward until you find a stack of crates leading up onto the ruins. Follow the pathway southward.

Continue along the path until you see an area jutting out to the north. Follow the pathway in, and you will find an elevator. Take the elevator up to find the statue of Lord Mi’ihen.

Press the button near the statue to use the Rusty Sword, which will cause a glyph to appear on the far wall. Press the button near the glyph to cause the Celestial Mirror to react. The mirror will glow, and you will receive Masamune.

You must now find the Mars CrestSaturn Crest and the Mars Sigil to power up Masamune, because when you initially receive it, all it will have is the No AP auto-ability, making it utterly useless.

Mars CrestSaturn Crest

Double-check your inventory before you do anything to see if you have already obtained the Mars CrestSaturn Crest. It would be located under the “Key Items” tab.

If you did not obtain it during the playthrough of the main story, start by traveling to the Mi’ihen Highroad. Rent a Chocobo from the lady standing outside Rin’s Travel Agency. Follow the Highroad along until you reach the “North End,” where the gate is located (shown in the screenshot below).

Turn and head southeast down the small pathway. Follow the road along until you reach the end of the path, where you will find a treasure chest. Open the chest to obtain the Mars CrestSaturn Crest.

Mars SigilSaturn Sigil

You can obtain the Mars SigilSaturn Sigil as a reward from the man at the Monster Arena. To receive it as a reward, you will need to complete a total of ten “Area Conquests” or “Species Conquests,” or a combination of the two, adding up to 10.

To unlock an “Area Conquest,” you need to find each fiend in one area. To unlock a “Species Conquest,” you need to capture at least one of each species, such as all the dragon types or all the bird types. Check out the Monster Arena section for details:

Return to Macalania Woods to the area where you received the Celestial Mirror once you have obtained both the Mars CrestSaturn Crest and the Mars SigilSaturn Sigil. Offer Masamune up twice to fully power it up using both the Crest and Sigil.

Masamune has the following abilities when fully powered up:

• Break Damage Limit - Allows Auron to do more than 9,999 damage in a single attack.
• Triple Overdrive - Charges Auron’s Overdrive at triple the speed.
• First Strike - Allows Auron to attack as soon as the battle begins.
• Counterattack - Allows Auron to counterattack any regular attacks.