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11 The Twelve Legendary Arms are among the most powerful weapons and armor in Final Fantasy Resonance. Square Enix detailed them on July 16, 2026 as one of the game's named high-difficulty tracks.
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33 How to Claim Them
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55 Twelve pieces of equipment lie sealed at points scattered across the world. Each one can only be claimed after breaking its seal and defeating the ruthless monstrosity sealed within it. Japanese material describes the reward as the strongest weapons and armor in the game, and frames the whole track as preparation for taking on even greater foes.
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77 The Chamber of Arms
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99 If you are unsure where one of these weapons is located, you can visit the Chamber of Arms, a room somewhere in the world where hints for each of the twelve can be viewed. It functions as the hunt's index rather than as a fast route to the rewards.
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1111 DetailValueCountTwelve pieces of equipmentLocationSealed at points scattered across the worldRequirementBreak the seal, then defeat the monstrosity sealed withinRewardSome of the strongest weapons and armor in the gameHintsViewable in the Chamber of Arms
1212 The September 2026 Restatement
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1414 Square Enix returned to the track on September 10, 2026 with a dedicated entry in its Japanese video series on the game's completionist content, and named the entry for the Chamber of Arms itself. The description matches the July account and sharpens one point: twelve arms lie scattered across the world behind seals, a boss sleeps inside each seal, and defeating that boss is what releases the arm. The reward is again given as the strongest weapons and armor in the game. The Japanese Steam store description, rewritten ahead of the free demo, names the Chamber of Arms directly as well.
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1616 DetailJuly 2026September 10, 2026What is sealedTwelve pieces of equipmentTwelve arms, scattered worldwideThe obstacleA ruthless monstrosity sealed withinA boss sleeping inside each sealThe rewardSome of the strongest weapons and armor in the gameThe strongest weapons and armor in the gameThe Chamber of ArmsA room holding hints for each of the twelveNamed as the subject of the video and in the Steam store description
1717 Related Optional Content
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1919 Other optional tracks were named later and sit alongside this one: Mighty Foes presiding over the caverns that dot the land, Secret Dungeons set apart from the main story, and the endgame fights against Gilgamesh and Ultima Weapon. The Colosseum is the other high-difficulty track Square Enix detailed on the same day. Square Enix added one more optional opponent on September 3, 2026: Sephiroth, whom players can find and challenge for a special reward. He has not been placed inside any of the tracks above, so he is recorded at Side Content and Endgame.
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21-Not Yet Detailed
21+This track is separate from Aileen's adamantite forging, which is its own weapon source.
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23-As of October 23, 2026, the individual weapons, their stats, the names of the bosses guarding them, and the Chamber of Arms's location have not been published, and the September 10 restatement adds none of them. This track is separate from Aileen's adamantite forging, which is its own weapon source.
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2523 Ancient equipment and guardian trials
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2725 An Ancient equipment piece is the base for its corresponding Legendary Arm. Take the base to its pedestal in the Chamber of Arms and start the level 50 trial. Defeating the guardian transforms that base into the Legendary Arm listed below.
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2927 Ancient equipmentLegendary ArmGuardianAncient GreatswordRagnarokAlphergAncient KatanaSasuke's BladeAldhaferaAncient BowArtemis BowDabihAncient HammerThor's HammerTegmineAncient TomeLast ResortElnathAncient FirearmArcturusAlhenaAncient RodWizard's RodSheratanAncient WhipFire BirchNunkiAncient CuirassTatenashi ArmorSadalsuudAncient GarmentMirage VestVindemiatrixAncient CloakLordly RobesShaulaAncient AccessoryGold HairpinBrachium
3028 After clearing the level 50 trial, its level 75 trial becomes available once the required character reaches level 70 or higher. Defeat the guardian again to upgrade the Legendary Arm to its + version.
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3230 Tablet Shard Rewards includes the Ancient Firearm at 76 shards and the Ancient Whip at 84 shards.
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3432 Guardian battle preparation
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3634 GuardianResponseShaulaModes nullify one damage type. Read the current mode and use the effective type; repeated attacks shorten the time to its next change.BrachiumUse magic against its physical mode and physical attacks against its magical mode. Light helps build stagger.VindemiatrixDraw its frequent opening attacks with a tank and use Dark. Losing body parts reduces its attack frequency.AldhaferaPrepare against Confuse and Berserk. Use Lightning in phase one, then Wind or Earth in phase two; avoid unnecessary attacks that reduce later damage.TegminePrepare against Instant Death, Blind, Sleep and Silence. It counters attacks and has high defenses; Deprotect and Deshell can help.AlhenaPhase one nullifies magic and phase two nullifies physical damage. Check its Fire/Wind weakness changes and avoid unnecessary attacks.ElnathUse Lightning while watching the countdown. Excessive stagger-gauge reduction between its actions can give it an Additional Attack.SheratanUse Fire and prepare ailment protection. Destroy the fruits in phase two before it consumes them for permanent buffs.SadalsuudPrepare against Paralysis, Petrification and Instant Death. Check each Barrier Shift and reduce incoming magic damage.AlphergUse physical attacks while Reflect is active. In phase two, use Lightning once Reflect has expired.NunkiRecheck weaknesses and resistances as they change. Prepare protection against Paralysis.DabihBring both damage types: Dabih resists physical attacks while its Cultist and Warlock resist magic. Prepare Light, Ice, Fire and Lightning coverage.
3735 For other dangerous encounter mechanics, see Boss Fight Quick Guide.