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To get Raiden’s sword in Lineage Piece, activate the Archon race, find the Raiden Seller on Frostborn Island, and bring the seller’s current materials and currency after farming the Plane of Euthymia. Buying the weapon does not complete Raiden mastery: that is a separate questline from another NPC, and published guides disagree on its objectives.

What you need before starting

Guides identify Archon as a prerequisite for buying Raiden; one also says it is required to begin mastery. Keep Archon active while following the purchase route, and check the seller’s live requirements before farming because reported totals have changed between versions. These details come from third-party guides, not an official game requirements page.

How to unlock and buy Raiden

  1. Activate Archon

    Obtain and activate the Archon race before approaching the seller. This requirement is reported by NerdsChalk and Lineage Piece Site.

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  2. Find the Raiden Seller on Frostborn Island

    The seller is reported to be left of spawn, down a snowy cliff ledge. The Raiden Mastery NPC is a different character, described as being at the back of Frostborn. AwesWikis’ Lineage Piece directory also lists Frostborn Island as Raiden’s location.

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  3. Get a Shrine Key

    The reported options are to defeat the Snow Bandit boss on Frostborn or exchange Tower Shards with the Tower Exchange NPC on Monument Isle. Lineage Piece Site lists a 1% Snow Bandit drop and an exchange cost of 5 Tower Shards; these are unverified guide figures, so check the current in-game drop or exchange display.

  4. Open and clear the Plane of Euthymia

    Use the Shrine Key to access the raid, where the required materials are reported to drop. NerdsChalk says Raiden appears around wave 10, but wave details can change; follow the current raid encounter rather than treating that estimate as guaranteed.

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  5. Check the seller’s bill and gather what remains

    NerdsChalk’s guide, dated August 24, 2026, reports the following purchase requirements. The seller’s current list in your game should take precedence if it differs.

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    Reported requirement Quantity Attribution
    Celestial Steel 40 NerdsChalk, August 24, 2026
    Shard of Calamity 5 NerdsChalk, August 24, 2026
    Tear of Eternity 5 NerdsChalk, August 24, 2026
    Puppet Core 2 NerdsChalk, August 24, 2026
    Electro Vision 1 NerdsChalk, August 24, 2026
    Coins 7,500,000 NerdsChalk, August 24, 2026; AwesWikis independently lists this currency amount
    Gems 7,500 NerdsChalk, August 24, 2026; AwesWikis independently lists this currency amount
    Race Archon active NerdsChalk, August 24, 2026
  6. Purchase the weapon

    Return to the Raiden Seller with the displayed requirements and complete the purchase. This unlocks the weapon; mastery must still be handled separately.

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Which materials are reported to drop in the raid?

Lineage Piece Site reports these Plane of Euthymia drop rates. Its page’s publication year is not stated, and the figures are not confirmed by an official drop table; use them as estimates, not guarantees.

Drop Reported rate Attribution
Celestial Steel 35% Lineage Piece Site; publication year not stated
Tear of Eternity 5% Lineage Piece Site; publication year not stated
Shard of Calamity 5% Lineage Piece Site; publication year not stated
Puppet Core 2% Lineage Piece Site; publication year not stated
Electro Vision 1% Lineage Piece Site; publication year not stated
God of Eternity title 3% Lineage Piece Site; publication year not stated

Which Shrine Key route should you use?

Route Reported cost or chance Practical trade-off
Defeat Snow Bandit on Frostborn 1% Shrine Key drop, according to Lineage Piece Site; publication year not stated Requires repeated boss attempts if the key does not drop.
Exchange at the Tower Shop on Monument Isle 5 Tower Shards per key, according to Lineage Piece Site; publication year not stated Uses a stated shard amount rather than relying on the reported boss drop chance.

Both options are guide-reported. Check the boss and exchange NPC in your current game version for the actual drop or cost.

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How Raiden mastery differs from buying the sword

The weapon purchase and mastery are separate: the reported mastery NPC is at the back of Frostborn Island, not at the seller. Two guides give conflicting mastery checklists, so do not combine them or assume either is current.

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Guide Reported mastery objectives
NerdsChalk, August 24, 2026 God of Eternity title; Archon; deal 1 billion damage with Raiden; clear Plane of Euthymia 15 times on Hard or Extreme.
Lineage Piece Site, publication year not stated Deal 3.5 billion damage with Solemn Lament; Archon; deal 750 million damage with Raiden; clear Plane of Euthymia 10 times on Hard or Extreme.

Ask the live mastery NPC for its current objectives and use that list to plan. NerdsChalk suggests doing Hard or Extreme raid runs while farming materials if clears also count toward mastery; verify the NPC’s current requirements before relying on that time-saving approach.

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