Reforge in Nioh is a process by which you can reroll the various attributes of your Weapons and Armor. By selecting a specific attribute that you want to eliminate from the piece of equipment, the reforging process will replace that attribute with another, selected at random, from an available pool of possible attributes. Requires Senji Tome.

Reforging an attribute requires 2 Spirit Iron Chunks, which can be acquired by playing through missions or by disassembling Rare and Exotic weapons. Some attributes cannot be acquired and some attributes cannot be changed. You cannot change attributes that can be transferred through Soul Matching and you cannot change attributes that have the hexagon symbol, like the inherent Damage Reduction or attributes that belong to one specific armor set (like Warrior of The West etc). You cannot acquire attributes that belong to different attribute pools and you can't acquire attributes that belong to specific armor sets. Reforging can change ability lines, but it cannot add more ability lines. Start with rare equipment to have access to more ability lines. After selecting a weapon for Reforging, you may press Triangle to change the Reforging Material from Spirit Iron Chunks to Divine Fragments or Anima Stones. Using Divine Fragments greatly increases your chance of acquiring rare attributes. Besides Divine Fragments and Spirit Iron Chunks, the player may spend Anima Stones and Glory, for a chance at acquiring a multiplayer specific attribute. You may also press Triangle from the Reforging Menu to bring up the Tempering Menu. Tempering uses Umbracite to manually change attributes to other attributes of the same type.


Re-Forging Melee Weapons



Melee Weapons have 8 exclusive pools and 1 non-exclusive pool. The non-exclusive bonuses can appear in any pool, but can be quite uncommon, and all or none can be present at one time. The non-exclusive pool is made up of: Break, Parry, Parry (Critical), Ki Reduction (Critical) and Proficiency Bonus in addition to the 8 exclusive pools which are listed below and only one of each pool can appear on a Weapon. Some Weapons come with fixed/locked bonuses that cannot be rerolled.

These values below are preliminary values, please edit the tables with any new higher values you encounter. White Text representing the max roll at 0 Familiarity, Blue Text Representing the max roll with max Familiarity.




Special Effect

Final Blow 19.9% 24.9%
Grapple Damage 19.9% 24.9%
Parry Disabled vs Guarding Enemy (Sword)    
Parry Disabled vs Guarding Enemy (Spear)    
Parry Disabled vs Guarding Enemy (Dual Swords)    
Parry Disabled vs Guarding Enemy (Axe)    
Parry Disabled vs Guarding Enemy (Kusarigama)    
Parry Disabled vs Guarding Enemy (Odachi)    
Parry Disabled vs Guarding Enemy (Tonfa)    
Weaken Melee Weapons 17.9% 22.9%
Weaken Armor (Torso) 17.9% 22.9%
Weaken Armor (Head) 17.9% 22.9%
Weaken Armor (Arms) 17.9% 22.9%
Weaken Armor (Legs) 17.9% 22.9%
Weaken Armor (Feet) 17.9% 22.9%


Damage Pool 1

Agility Damage Bonus  A A+
Familiarity Damage Bonus  A A+
Enemies Defeated Damage Bonus  A A+
Damage Bonus (Less armor) A A+
Equipment weight Damage Bonus  A A+
Increased Damage (Consecutive attacks) A A+
Equipment Lightness Damage Bonus  A A+

Ninjutsu Damage Bonus

A A+
Onmyo Magic Damage Bonus A A+


Damage Pool 2

Low Attack Damage 19.9% 24.9%
Mid Attack Damage 19.9% 24.9%
High Attack Damage 19.9% 24.9%
Quick Attack Damage 19.9% 24.9%
Strong Attack Damage 19.9% 24.9%
Close Combat Damage 15% 20%
Close Combat Attack (Critical) 16.9% 19.9%
Skill Damage 19.9% 24.9%
Damage From Behind 19.9% 24.9%
Damage to Revenants 19.9% 24.9%
Yokai Close Combat Damage 19.9% 24.9%
Human Close Combat Damage 19.9% 24.9%


Attack Ki Reduction Pool

Close Combat Attack Ki Reduction 20% 25%
Low Attack Ki Reduction 19.9% 24.9%
Mid Attack Ki Reduction 19.9% 24.9%
High Attack Ki Reduction 19.9% 24.9%
Quick Attack Ki Reduction 19.9% 24.9%
Strong Attack Ki Reduction 19.9% 24.9%
Skill Ki Reduction 19.9% 24.9%


Ki Damage Pool

Close Combat Attack Ki Damage  8.9% 11.9%
Low Attack Ki Damage 9.9% 12.9%
Mid Attack Ki Damage 9.9% 12.9%
High Attack Ki Damage 9.9% 12.9%
Quick Attack Ki Damage 9.9% 12.9%
Strong Attack Ki Damage 9.9% 12.9%
Skill Attack Ki Damage 9.9% 12.9%


Elemental Status Pool

Fire 16 22
Water 16 22
Wind 16 22
Lightning 16 22
Earth 16 22
Poison 16 22
Paralysis 16 22


Life Recovery Pool

Low Attack Life Drain 24 26
Mid Attack Life Drain 24 26
High Attack Life Drain 24 26
Skill Life Drain 24 26
Quick Attack Life Drain 21 23
Strong Attack Life Drain 19 21
Close Combat Attack Life Drain 22 24
Onmyo Magic Life Drain ?? ??
Ninjutsu Hits Life Drain ?? ??
Close Combat Life Recovery 215 265
Life Recovery By Final Blow 215 265
Life Recovery By Grapple 215 265


Break Pool

Low Attack Break 19.9% 24.9%
Mid Attack Break 19.9% 24.9%
High Attack Break 19.9% 24.9%
Quick Attack Break 19.9% 24.9%
Strong Attack Break 19.9% 24.9%
Skill Break 19.9% 24.9%


Guard Ki Reduction Pool

Guard Ki Reduction 16.9% 21.9%
Low Guard Ki Reduction 19.9% 24.9%
Mid Guard Ki Reduction 19.9% 24.9%
High Guard Ki Reduction 19.9% 24.9%

Guard Ki Reduction (Critical)

25% 30%


Change to Attack Pool

Change to Attack (Body) A A+
Change to Attack (Heart) A A+
Change to Attack (Stamina) A A+
Change to Attack (Strength) A A+
Change to Attack (Skill) A A+
Change to Attack (Dexterity) A A+
Change to Attack (Magic) A A+
Change to Attack (Spirit) A A+

; Source


  • Familiarity Damage Bonus A increases damage by roughly 15%.
  • Agility Damage Bonus adds 10% Close Combat Damage at (B) Agility and 15% at (A) Agility.
  • Enemies Defeated Damage Bonus adds 1% Close Combat damage per kill, up to a maximum of 16%
  • Onmyo Magic Damage Bonus and Ninjutsu Damage Bonus are reported to be in the range of 5%.
  • Equipment Weight Damage Bonus will add 15% damage when players are above 30.1 weight in units. Below this weight, the bonus drops to 5%. 
  • Damage Bonuses do not carry over to Ranged Weapons. 

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    • Anonymous

      Damage Pool 2 is completely wrong Low/Mid/High/Quick/Strong Attack Damage all cap at 20.9% with max familarity, not 24.9% like they say, i wish it did. im pretty sure there are even more errors here as well.

      • Anonymous

        Does anyone know what the maximum Status Ailment Augmentation is on a roll with max Familiarity? I can't find it anywhere on the net

        • Anonymous

          Blows my mind how empty the wikis are for this game (across all wikis) when every other wiki for every other game I've ever played was infinitely more extensive / detailed / up-to-date, wikis of the Souls games included. This is surprising considering how this game has / had a large playerbase, is old, and is far, far from being garbage.

          • Anonymous

            melee damage effect (the blue rarity base effect) is missing and conflicts with the damage scaling with stat effects

            • Anonymous

              Soo I got some boots that have the effect 'Life recovery after you purify' So I get a regen effect when that happens but I don't see it here

              • Anonymous

                So this is outdated... there was a special effect that I had in which allowed me (I think) to combo against blocking enemies, it was a yellow teir effect.

                • Anonymous

                  I have a sword with final blow damage, can I also reforge a different trait to have damage from behind to go with it?

                  • Anonymous

                    Where is "Skill Ki Reduction"? Also i happen to have "Change to Attack(spirit)" and "Agility Damage Bonus" on the same weapon

                    • Anonymous

                      For anyone curious I have tested extensively all the bonuses and have concluded that Familiarity Bonus of A+(max familiarity with a weapon) equals 15.5% damage increases, Agility Bonus of A+ with Agility of A equals 15%, Enemies Defeated bonus seemed to cap at 8 or 9%, not sure if it time based but couldn't get it higher after clearing the first area so may be higher if you can manage to kill more in a shorter span of time, I got as far as the hut that holds the key with the first Yokai in the game, finally the change to stat on the Katana, my weapon of choice, benefits the most from change to skill A+. I tried the strength, heart, body, and skill all with no skills unlocked and with the exact same stats. Also the biggest damage boost comes from low, mid, high attack currently at 15.9%. If any found an higher values or different results please post. I'm trying to unlock the best weapon possible. Thanks.

                      • Anonymous

                        Is there any possible way to remove the inheritable special effect from a weapon? I have some really really good weapons stuck with one really bad inheritable special effect.

                        • Anonymous

                          Note that damage thing should be divided in two pools, Change to attack and Agility Bonus for example, can be on same weapon.

                          • Anonymous

                            How about paralysis and poison? which pool do they belong? i think i remember getting paralysis effect on my katana or spear before.

                            • Anonymous

                              It takes luck, gold, and LOADS of spirit iron, but putting Bonus Amrita on all your favorite armors is well worth the multiple rolls of the dice to get it.

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