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Weapon Refinery

Weapon Refinery is a mechanic in Fire Emblem Heroes which was introduced in version 2.0.

Weapon Refinery allows 5-Star Heroes to refine their certain fourth tier weapons, granting their weapons bonus stats or effects. Inheritable Weapons that can be refined have the ability to increase the HP of the unit and one of the four other core stats. All inheritable staff weapons do not carry this trait as they instead can gain either the effect of Wrathful Staff or Dazzling Staff. To refine these inheritable weapons, 50 Refining Stones and 500 Arena medals are used. Rearmed weapons are considered stronger versions of the inheritable weapons, but carry the same types of refines as the aforementioned weapons. However, obtaining a refine requires 200 Refining Stones and 500 Arena Medals.

Unique weapons that cannot be inherited off of their native unit, such as Hauteclere or Light Brand, can be refined with a special skill attached to it. In some cases, these refines can improve/modify their existing base skill as well as adding an additional effect. From the information window, any green text signifies the new bonus effects. Unique staff units only have a bonus effect Refine. Refining a Unique weapon requires 200 Divine Dew and 500 Arena Medals.

Several weapons also have the ability to upgrade themselves into stronger forms. For example, a Hammer can become a Slaying Hammer. Some unique weapons can also be evolved if a version exists. Examples include Eliwood's Durandal evolving into the Blazing Durandal from Brave Roy or Ephraim's Siegmund evolving into the Flame Siegmund from his Legendary variant. Evolving an inheritable weapon costs 20 Refining Stones and 200 Arena medals. Unique weapons costs 150 Divine Dew and 375 Arena Medals.

For inheritable weapons, their capabilities of refining began either when the feature was first implemented back in Ver. 2.0 or upon being obtained after their release if their debut was after that Version. Some unique weapons were able to be refined from the start. Since Ver. 2.0. once per month, a select number of units who have unique weapons or just received a new unique weapon gain access to this feature.

Each weapon has different upgrades with different bonuses. The upgraded icon of a weapon determines its upgraded effect:

Icon Effect Weapon(s)

Increased Might (non-staff)

Increased Speed (non-staff)

Increased Defense (non-staff)

Increased Resistance (non-staff)

Passive added (Dazzling Staff) (staff)

Passive added (Wrathful Staff) (staff)

Passive added (?) Armorsmasher+, Slaying Spear+, Slaying Hammer+

Passive added (?) Zanbato+, Horseslayer+, Poleaxe+, Keen Rauðrwolf+, Keen Blárwolf+, Keen Gronnwolf+

Passive added (Brash Assault) Sol Katti

Passive added (Fury) Mystletainn, Axe of Virility, Hinata's Katana

Passive added (?) Siegmund

Passive added (?) Fujin Yumi, Nóatún

Passive added (?) Hauteclere, Nameless Blade, Shanna's Lance, Selena's Blade

Passive added (?) Deathly Dagger

Passive added (?) Cymbeline

Passive added (?) Parthia

Passive added (Distant Defense) Eckesachs

Passive added (?) Falchion (Archanean)

Passive added (?) Falchion (Ylissean)

Passive added (?) Falchion (Valentian)

Passive added (Flashing Blade) Wing Sword, Rhomphaia, Niles's Bow

Passive added (?) Hinoka's Spear

Passive added (Life and Death) Basilikos, Solitary Blade

Passive added (?) Felicia's Plate

Passive added (?) Sieglinde

Passive added (?) Brynhildr

Passive added (?) Wind's Brand

Passive added (Quick Riposte) Binding Blade, Bow of Devotion

Passive added (Death Blow) Forblaze, Frederick's Axe

Passive added (?) Regal Blade

Passive added (?) Camilla's Axe

Passive added (?) Yato

Passive added (?) Breath of Fog

Passive added (?) Excalibur, Aura

Passive added (Steady Posture) Dauntless Lance

Passive added (Resistance Tactic) Draconic Poleax

Passive added (Speed Resistance Ploy) Reese's Tome

Passive added (Triangle Adept) Fólkvangr, Tome of Order

Passive added (Speed Defense Bond) Fensalir

Passive added (Panic Ploy) Cherche's Axe

Passive added (Brazen Attack Speed) Ragnarok

Passive added (Attack Speed Link) Odin's Grimoire, Book of Orchids

Passive added (?) Vidofnir

Passive added (?) Nidhogg

Passive added (?) Golden Dagger

Passive added (?) Florina's Lance

Passive added (?) Gladiator's Blade

Passive added (Quickened Pulse) Scarlet Sword, Dark Excalibur

Passive added (?) Whitewing Blade, Whitewing Lance, Whitewing Spear

Passive added (?) Tactical Bolt, Tactical Gale

Passive added (Attack Defense Bond) Tyrfing

Passive added (?) Naga

Passive added (?) Divine Naga

Passive added (Speed Tactic) Silverbrand

Passive added (?) Tharja's Hex

Passive added (Close Defense) Oboro's Spear

Passive added (?) Grado Poleax

Passive added (Even Attack Wave) Iris's Tome

Passive added (Darting Blow) Tome Of Thoron, Steady Lance

Passive added (Swift Sparrow) Amiti, Durandal, Hana's Katana

Passive added (?) Dark Aura

Passive added (Bracing Stance) Eternal Tome

Passive added (Chill Defense) Argent Bow

Passive added (?) Peri's Lance

Passive added (?) Bull Blade, Panther Lance

Passive Added (Sturdy Stance) Daybreak Lance

Passive Added (?) Bull Spear, Panther Sword

Passive Added (?) Spy's Dagger, Blue-Crow Tome, Valflame, Wargod's Tome

Passive Added (?) Inscribed Tome

Passive Added (?) Beruka's Axe

Passive Added (?) Saizo's Star, Gloom Breath

Passive Added (?) Kagero's Dart

Passive added (?) Hermit's Tome

Passive added (?) Rowdy Sword

Passive added (?) Loyal Greatlance

Passive added (?) Blazing Durandal

Passive added (?) Geirskögul

Passive added (?) Urvan

Passive added (?) Mulagir

Passive added (Lull Attack Defense) Guardian's Axe, Dark Royal Spear

Passive added (?) Dignified Bow, Jubilant Blade

Passive added (?) Weirding Tome, Runeaxe

Passive added (Desperation) Concealed Blade

Passive added (?) Golden Naginata

Passive added (Lull Attack Speed) Sun Dragonstone

Passive added (?) Renowned Bow

Passive added (?) Resolute Blade

Passive added (?) Knightly Lance, Lordly Lance

Passive added (?) Arthur's Axe

Passive added (?) Light Brand

Passive added (?) Cordelia's Lance

Passive added (?) Rebecca's Bow

Passive added (?) Corvus Tome

Passive added (?) Laslow's Blade

Passive added (?) Father's Tactics

Passive added (Wrath) Devil Axe

Passive added (?) Jakob's Tray

Passive added (?) Laid-Back Blade

Passive added (Sabotage Attack) Veteran Lance

Passive added (?) Thunderhead

Passive added (?) Gleipnir

Passive added (?) Inveterate Axe

Passive added (?) Candied Dagger

Passive added (?) Dark Greatsword

Passive added (?) Weighted Lance

Passive added (?) Bow of Beauty

Passive added (?) Stalwart Sword

Passive added (?) Hewn Lance

Passive added (?) Great Flame

Passive added (?) Sniper's Bow

Passive added (?) Beloved Zofia

Passive added (?) Crimson Axe

Passive added (?) Bright Naginata

Passive added (?) Sneering Axe

Passive added (?) Setsuna's Yumi

Passive added (?) Royal Sword

Passive added (?) Maltet

Passive added (?) Garm

Passive added (?) Hliðskjálf

Passive added (?) Divine Tyrfing

Passive added (?) Effie's Lance

Passive added (?) Obsessive Curse

Passive added (?) Cursed Lance

Passive added (?) Thani

Passive added (?) Eternal Breath

Passive added (?) Elise's Staff

Passive added (?) Sealed Falchion

Passive added (?) Purifying Breath

Passive added (?) Tome of Favors

Passive added (?) Elena's Staff

Passive added (?) Arden's Blade

Passive added (?) Forseti

Passive added (?) Warrior Princess

Passive added (?) Springtime Staff

Passive added (?) Audhulma

Passive added (?) Meisterschwert

Passive added (Joint Drive Attack & Joint Drive Speed) Giga Excalibur, Fruit of Iðunn

Passive added (?) Spy-Song Bow

Passive added (?) Ayra's Blade

Passive added (?) Grimoire

Passive added (?) Naglfar

Passive added (?) Ivaldi

Passive added (?) Mjölnir

Passive added (?) Shamshir

Passive added (?) Flower Lance

Passive added (?) Gáe Bolg

Passive added (?) Berserk Armads

Passive added (?) Grima's Truth, Blizzard

Passive added (?) Alondite, Ragnell

Passive added (?) Raijinto

Passive added (?) Siegfried

Passive added (?) Gradivus

Passive added (?) Vassal's Blade

Passive added (?) Muninn's Egg

Passive added (?) Skadi

Passive added (?) Hoarfrost Knife

Passive added (?) Peshkatz

Passive added (?) Masking Axe

Passive added (?) Leiptr

Passive added (?) Huginn's Egg

Passive added (?) Stout Tomahawk

Passive added (?) Expiration, Sagittae

Passive added (?) Loyalty Spear

Passive added (?) Punishment Staff

Passive added (?) Dark Mystletainn

Passive added (?) Níu

Passive added (?) Nifl Frostflowers

Passive added (?) Dusk Dragonstone

Passive added (?) Dracofalchion

Passive added (?) Flame Siegmund, Hawk King Claw

Passive added (?) Ninis's Ice Lance

Passive added (?) Swift Mulagir

Passive added (?) Light of Dawn

Passive added (?) Sanngriðr

Passive added (?) Soleil's Shine

Passive added (?) Laevatein

Passive added (?) Missiletainn

Passive added (?) Loptous

Passive added (?) Múspell Fireposy

Passive added (?) Fanged Basilikos

Passive added ( foe's Spd, grants Special cooldown charge +1 and deals +5 damage per unit's attack, including when dealing damage with a Special triggered before combat. (Only highest value applied. Does not stack.)" style="color:#d9d9d9">?) Kaze's Needle

Passive added (?) Exalted Falchion

Passive added (?) Thunder Armads

Passive added (?) Býleistr

Passive added (?) Divine Mist

Passive added (?) Inviolable Axe

Passive added (?) Summer's Breath

Passive added (?) Wolf Queen Fang

Passive added (?) Wolf Berg

Passive added (?) Thökk

Passive added (?) Ancient Codex

Passive added (?) Sworn Lance

Passive added ( foe's Spd, reduces damage from attacks during combat and from area-of-effect Specials (excluding Røkkr area-of-effect Specials) by percentage = difference between stats × 4 (max 40%)." style="color:#d9d9d9">?) Storm Sieglinde

Passive added (?) Thögn

Passive added (?) Draconic Rage

Passive added (?) Spirit Breath

Passive added (?) Bow of Verdane

Passive added (?) Tome of Reason

Passive added ( foe's Spd, reduces damage from attacks during combat and from area-of-effect Specials (excluding Røkkr area-of-effect Specials) by percentage = difference between stats × 3 (max 30%), and unit deals +5 damage including when dealing damage with a Special triggered before combat." style="color:#d9d9d9">?) Hurricane Dagger