Description

There are 11 weapons in Nioh 2. Each weapon has its own Skill Tree containing new Skills and Passive Skills that are applied during combat. There are 2 support style Skill Trees in the form of Ninjutsu and Onmyo Magic. Finally there are 2 universal Skill Trees in the form of Samurai and Shiftling Skill Trees.

Checking Proficiency Points: You can always check your current proficiency on Samurai, Shiftling, Onmyo, Ninjutsu, and Weapon Trees by: Pressing Start ⟶ Status ⟶ RB.
Acquiring Skill Points: You gain Weapon, Onmyo, and Ninjutsu Skill Points by reaching the next level in proficiency for that Weapon or Jutsu. You gain Weapon or Jutsu proficiency by using the Weapon or Jutsu in combat. Proficiency gained is based on the number of HITS, not the output of damage!
You can also unlock Skill Points by using Locks of Hair, these come in the form of: Samurai Locks of Hair, Specific Weapon Locks of Hair, and Ninjutsu / Onmyo Magic Locks of Hair. These Locks of Hair can be acquired as item pick ups in mission, or as mission rewards. Getting Shiftling Skill Points requires acquiring Soul Cores, and performing Resting Rites under the "Manage Soul Cores" section at the Shrine. Acquiring Samurai Skill Points requires mission progressions.

Maximum Shiftling Level: 90 - (59,000,000) Proficiency Points.
Maximum Ninjutsu & Onmyo Magic Level: 70 - (26,000,000) Proficiency Points.
Maximum Melee Weapon Level: 60 - (11,000,000) Proficiency Points.

Resetting Skills: You can reset all of the skills within a Skill Tree by going to the Dojo ⟶ Press Y / Triangle ⟶ Choose the Skill Tree you want to reset.

Below is the Weapon Stat Scaling Table followed by the list of the Weapons' Skills and their Skills Trees.

Weapon Stat Scaling

Weapon Scaling			Stat
Weapon	Subtype	Damage Type	Primary	Secondary	Tertiary
Sword	Tachi	Slashing	Heart	Skill	Strength
	Uchigatana	Slashing	Heart	Strength / Skill
Dual Swords	-	Slashing	Skill	Heart	Strength
Spear	Spear	Slashing	Constitution	Strength / Skill
	Cross Spear	Slashing	Constitution	Strength / Skill
Axe	Axe	Slashing	Stamina	Courage	Strength
	Hammer	Striking	Stamina	Constitution	Courage
Kusarigama	-	Slashing	Dexterity	Skill	Strength
Odachi	Type 1	Slashing	Strength	Stamina	Heart
	Type 2	Slashing	Strength	Stamina / Heart
Tonfa	-	Striking	Courage	Constitution	Dexterity
Hatchets	-	Slashing	Skill	Courage	Magic
Switchglaive	-	Slashing	Magic	Skill / Constitution
Splitstaff	-	Striking	Magic	Courage	Strength
Fists	Fists	Striking	Strength	Dexterity	Heart
	Claws	Slashing	Strength	Dexterity	Heart

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Slashing Weapons do normal Damage and normal Ki Damage. Striking Weapons do -20% Damage and +20% Ki Damage compared to Slashing Weapons. All Wooden Weapons do striking damage.
If a Weapon does not have a tertiary stat, it cannot be remodelled to have A- / A- scaling.

Weapon Skills / Skill Trees

Weapon
Samurai Skill Tree
Shiftling Skill Tree
Ninjutsu Skill Tree
Onmyo Magic Skill Tree
Sword Skill Tree
Dual Swords Skill Tree
Spear
Axe Skill Tree
Kusarigama Skill Tree
Odachi Skill Tree
Tonfa Skill Tree
Hatchets Skill Tree
Switchglaive Skill Tree
Splitstaff Skill Tree
Fists Skill Tree