The Three Gyakusatsu Swords (limited)

Name: Hageshi Gyakusatsu
Type: Weapon
Canon/Custom: Custom
Rank: S
Durability: 100
Material: Chakra infused steel smelted with the bones of a 'demon'
Damage Type: Slashing
Description: The three Gyakustsu blades are all katanas forged from the corpse of an incredible summon who plagued the frigged north. Hageshi Gyakusatsu appears as a red blade with a cross-shaped guard. Simply holding this cursed weapon fills the user with an urge to proudly kill indiscriminately and shout their name to the heavens. It is said that the original monster's chakra persists in the blade, allowing users to hear its malicious screams and demands in their mind if they focus on the weapon.
Equipment Ability:
Bloodlust- Boosts Strength by 30 if the weapon is used with the intent to kill. This boost goes away if the user loses their resolve.
Roar- Upon drawing blood, the weapon's hatred flows through your mind, boosting your speed by 20 when you're attacking the injured target.
Equipment jutsus:  
Possession- A technique to surrender one's own will to the sword that can only be activated by a Samurai. The user becomes a tool of their weapon for S Rank Upkeep each turn. The user's Strength is boosted by 100 and red and black streaks of chakra arc off the sword, appearing like lightning, while the user's fighting style changes, becoming more vicious and brutal at the sword's command. While in this state, it is impossible for each blow to be meant for anything other than to kill.
Cost: 9,000 Ryu
Requirements: Requires 100 Strength to use or the sword will immediately overtake its user. Cannot be used with any other weapons.

Name: Chinmoku Gyakusatsu
Type: Weapon
Canon/Custom: Custom
Rank: S
Durability: 100
Material: Chakra infused steel smelted with the bones of a 'demon'
Damage Type: Slashing
Description: The three Gyakustsu blades are all katanas forged from the corpse of an incredible summon who plagued the frigged north. Chinmoku appears as a white blade with a silver diamond-shaped guard. It is said that the weapon holds the monster's predatory instincts, the desire to hide, wait, and observe its target. While subtle, the sword is said to hold its own personality that fills its user with paranoia and distrust, driving them further and further away from other people if the user is incapable of overwhelming its desires. Eventually, even the user's soul may become that of a beast if left unchecked.
Equipment Ability:
Instinct- The user's speed is boosted by 30 as long as they allow their sword to act reflexively. This also allows the user to fight without thinking, counteracting genjutsu activated mid-combat.
Hunting- If the user's speed is faster than the opponent, their body will be able to slip into the opponent's blind side any turn they're not attacking, making hiding much easier.
Equipment jutsus:
Possession- A technique only usable by Samurai who surrender themselves to the essence of the blade. This costs an S Rank upkeep and makes the user's hair grow slightly and stick out while also making their eyes turn cold, glowing slightly with reflected light. During this state, the user's body is boosted, increasing both Strength and Speed by 50 while they're forced to think as a beast, often involuntarily snarling or bearing their fangs as a natural reflex.
Cost: 9,000 Ryu
Requirements: Requires 100 Stamina to activate any Stat boosts outside of Possession since the user's body will be unable to handle the strain.. The sword will reject the user and give no benefits while the user is around 10 or more other people, preferring to be alone.

Name: Kodokuna Gyakusatsu
Type: Weapon
Canon/Custom: Custom
Rank: S
Durability: 100
Material: Chakra infused steel smelted with the bones of a 'demon'
Damage Type: Slashing
Description: The three Gyakustsu blades are all katanas forged from the corpse of an incredible summon who plagued the frigged north. Kodokuna Gyakusatsu is a black katana with a perfectly round sphere-shaped black guard. The blade instills the wielder with regret and reflection, but holds incredible power. It's said that this weapon houses the monster's chakra and houses a personality, but only those who understand despair can hear its voice and gain its advice.
Equipment Ability:
Passivity- While the user pushes their aggression aside, the sword can be used defensively to boost their Durability by 30. During this time, the sword can mentally communicate with the user.
Decisiveness- Once every other post, the user is able to deliver an especially powerful strike with 30 Strength higher than normal.
Equipment jutsus:  
Possession- A skill only usable by Samurai that allows the user to give in to their weapon's wisdom. For an S Rank cost, the user's surrounded by a faded round grey aura with a five foot radius. During this time, perception is maximized and the user is capable of instantly slashing anything that enters this range that was not within it before, including Jutsu up to A rank. However, the user also cannot move until dispelling this technique because of the focus required for it.
Cost: 9,000 Ryo
Requirements: Must have 100 Perception or the weapon will not respond to the user, granting no bonuses at all. If the user becomes enraged or overly excited, they will not be able to activate Possession.