Kekkei Genkai Name: Futatsu
Kekkei Genkai Description: Users of this kekkai genkai have been born with what seems to be a mind and spirit that makes them often be seen as having dual personalities. The "Futatsu" (second spirit) or sometimes know as the demon mind, is capable of physically parting from the first using kekkai genkai techniques. However, what is found is the futatsu is based on chakra and even though it gives the user an advantage in certain battle techniques and jutsu, it does consume as overwhelming amount of chakra.
Kekkei Genkai Effects: Users of this kekkai genkai are capable of sacrificing health for their jutsu after their chakra has been drained
Skill Sets: Demonic Protection Skill Set
Jutsus: Futatsu Activation; Demon Art: Barreling Punch; Demon Illusion: Me'ati; Demon Art: Second Mind; Demon Art: Futatsu Bond; Demon Art: Futatsu Creation

Kekkei Genkai Name: Skelazo
Kekkei Genkai Description: Users of this kekkai genkai have a particular chakra that is rooted and forms within their bones which allows them to create and manipulate a chakra skeletal system around their body
Kekkei Genkai Effects: Generally takes a large amount of chakra to form the skeletal network but makes an ultimate defense that can be used for attacking as well
Skill Sets: Skelazo Protection Skill Set; Skelazo Taijutsu Skill Set; Skelazo Large Damage Skill Set
Jutsus: Skelazo's Defense; Skelazo Activation Level 1; Skelazo Bones Level 2; Skelazo Body Formation; Skelazo's Crash; Skelazo Destructive Arm; Skelazo's Mind; Skelazo's Spear; Skelazo Body Spikes; Skelazo Foresight; Skelazo Full Density

Potent form of water - Bubble Jutsu:

Jutsu Name: Water Style: Bubble Bomb Jutsu
Jutsu Type: Ninjutsu
Description: User creates a medium size bubble that follows target and explodes, bubble will explode after a certain period of time
Jutsu Level: Novice
Chakra Nature: Water Release
Jutsu Range: Medium
Effects: None

Jutsu Name: Bubble Illusion: Foamshuttle
Jutsu Type: Genjutsu
Description: Target sees an arrangement of color and bubbles coming towards them; must be able to learn water style techniques
Jutsu Level: Novice
Chakra Nature: Yin Release
Jutsu Range: Medium
Effects: If target does not break free from genjutsu by a certain period of time, they fall asleep

Jutsu Name: Water Style: Bubble Assault
Jutsu Type: Ninjutsu
Description: User creates bubbles that launches at target for multiple explosions; must know "Water Style: Bubble Bomb Jutsu" to learn
Jutsu Level: Intermediate
Chakra Nature: Water Release
Jutsu Range: Medium
Effects: None

Jutsu Name: Water Style: Bubble Clone Jutsu
Jutsu Type: Ninjutsu
Description: User puts themselves and four clones randomly in bubbles;  must know "Water Style: Bubble Bomb Jutsu" to learn
Jutsu Level: Expert
Chakra Nature: Water Release
Jutsu Range: Medium
Effects: Any clone bubble that is attacked explodes

Jutsu Name: Water Style: Bubble Field Jutsu
Jutsu Type: Ninjutsu
Description: User creates a field of bubbles that float toward target and explode on contact; must know "Water Style: Bubble Assault" to learn
Jutsu Level: Expert
Chakra Nature: Water Release
Jutsu Range: Large
Effects: None

Adding Earth style with Fang Jutsus:

Jutsu Name: Earth Style: Hidden Scent Jutsu
Jutsu Type: Ninjutsu
Description: User has the ground to cover them
Jutsu Level: Beginner
Chakra Nature: Earth Release
Jutsu Range: Low
Effects: User is not detected by sensory or attacks that seek out this user

Jutsu Name: Earth Style: Mud Wall
Jutsu Type: Ninjutsu
Description: User creates a wall in front of them for defense
Jutsu Level: Beginner
Chakra Nature: Earth Release
Jutsu Range: Low
Effects: None

Jutsu Name: Summoning Earth Style: Fang Tracking Jutsu
Jutsu Type: Ninjutsu
Description: User summons an earth wolf to attack and enemy
Jutsu Level: Novice
Chakra Nature: Earth Release
Jutsu Range: Large
Effects: None

Jutsu Name: Natural Instinct Jutsu
Jutsu Type: Sensory
Description: User connects to the earth to sense anyone close; must have earth release to learn; must have earth release to learn
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Large
Effects: User sees all beings within a 50 foot radius on their map

Jutsu Name: Earth Style: Earth Mausoleum
Jutsu Type: Ninjutsu
Description: User creates an earth style dome enclosing opponents in a targeted area
Jutsu Level: Intermediate
Chakra Nature: Earth Release
Jutsu Range: Medium
Effects: Opponents need to break through dome and cannot target objects outside

Jutsu Name: Earth Style: Nutrient Transfer Jutsu
Jutsu Type: Ninjutsu
Description: User feeds off the chakra of anyone in "Earth Style: Earth Mausoleum"; must know "Earth Style: Earth Mausoleum" to learn
Jutsu Level: Intermediate
Chakra Nature: Earth Release
Jutsu Range: Medium
Effects: Anyone inside "Earth Style: Earth Mausoleum" loses chakra every few seconds

Jutsu Name: Summoning Earth Style: Fang Pursuit Jutsu
Jutsu Type: Ninjutsu
Description: User summons earth wolfs to attack and hold an enemy within range; must know "Summoning Earth Style: Fang Tracking Jutsu" to learn
Jutsu Level: Intermediate
Chakra Nature: Earth Release
Jutsu Range: Large
Effects: Closest enemy takes damage and is unable to move for several seconds

Jutsu Name: Earth Style: Fang Sealing Jutsu
Jutsu Type: Ninjutsu
Description: Enemies caught in "Summoning Earth Style: Fang Pursuit Jutsu" gets a seal placed on them; must know "Summoning Earth Style: Fang Pursuit Jutsu" to learn
Jutsu Level: Expert
Chakra Nature: Earth Release
Jutsu Range: Large
Effects: Enemies caught by this cannot use jutsu for 15 seconds

Jutsu Name: Earth Style: Earth Fang Bombs
Jutsu Type: Ninjutsu
Description: User summons a large earth wolf head that shoot multiple mud bombs from its mouth; must know "Summoning Earth Style: Fang Tracking Jutsu" to learn
Jutsu Level: Expert
Chakra Nature: Earth Release
Jutsu Range: Medium
Effects: None

Lightning Set for dragon thunder thread:

Jutsu Name: Dragon Lightning: Dragon Fists
Jutsu Type: Taijustu
Description: User adds lightning to their hands to create dragons; must know "Additional Power" to learn
Jutsu Level: Novice
Chakra Nature: Lightning Release
Jutsu Range: Melee
Effects:  User melee attacks gain lightning damage and have a 5% chance of stunning

Jutsu Name: Lightning Style: Flex Bolt Level 1
Jutsu Type: Ninjutsu
Description: User send up a ball of lightning energy to the sky that comes down as a bolt of lightning
Jutsu Level: Intermediate
Chakra Nature: Lightning Release
Jutsu Range: Medium
Effects:  This jutsu can be blocked but cannot be evaded and does not miss

Jutsu Name: Dragon Lightning: Ogipess
Jutsu Type: Ninjutsu
Description: User creates a lightning dragon that attacks multiple targets
Jutsu Level: Intermediate
Chakra Nature: Lightning Release
Jutsu Range: Medium
Effects:  None

Jutsu Name: Lightning Illusion: Dragon Dance
Jutsu Type: Genjutsu
Description: User creates two lightning dragons that chase the target in a world of genjutsu; must know "Dragon Lightning: Ogipess" to learn
Jutsu Level: Intermediate
Chakra Nature: Lightning Release
Jutsu Range: Medium
Effects: None

Jutsu Name: Water Style: Rain Dance
Jutsu Type: Ninjutsu
Description: User summons a rain cloud
Jutsu Level: Intermediate
Chakra Nature: Water Release
Jutsu Range: Large
Effects: Water style attacks use less chakra while fire style attacks use more chakra

Jutsu Name: Lightning Style: Thunder Bolts Level 2
Jutsu Type: Ninjutsu
Description: User summons a several bolts of lightning to hit their target; must know "Lightning Style: Flex Bolt Level 1" to learn
Jutsu Level: Expert
Chakra Nature: Lightning Release
Jutsu Range: Medium
Effects:  This jutsu cannot be used unless it is raining; does not consume any of the user's chakra

Jutsu Name: Lightning Style: Lightning Pillar Level 2
Jutsu Type: Ninjutsu
Description: User calls a lightning bolt to strike a target and does damage to anything within 10 feet of target; must know "Lightning Style: Flex Bolt Level 1" to learn
Jutsu Level: Expert
Chakra Nature: Lightning Release
Jutsu Range: Medium
Effects:  Initial damage to target if hits and secondary damage to anything within 10 foot radius

Jutsu Name: Water Style: Sekken
Jutsu Type: Ninjutsu
Description: User summons a rain cloud that consumes chakra; must know "Water Style: Rain Dance" to learn
Jutsu Level: Expert
Chakra Nature: Water Release
Jutsu Range: Large
Effects: All ninjutsu attacks take twice as much energy to perform and fire style attacks give half the damage

Jutsu Name: Dragon Lightning: Kirin
Jutsu Type: Ninjutsu
Description: User summons lighting from the sky in the form of a dragon to strike its target; must know "Lightning Style: Lightning Pillar Level 2" and "Dragon Lightning: Ogipess" to learn
Jutsu Level: Master
Chakra Nature: Lightning Release
Jutsu Range: Large
Effects: This jutsu can be blocked but cannot be evaded and does not miss; jutsu cannot be used unless it is raining; gives massive damage and stuns; does not consume any of the user's chakra; has a very long cool down time

How about animal integrated ninjutsu threads? Starting with Water/Shark bomb thread

Jutsu Name: Sea Serenity
Jutsu Type: Sensory
Description: User toggles this jutsu on to connect to all beings touching same body of water
Jutsu Level: Beginner
Chakra Nature: Yin Release
Jutsu Range: Medium
Effects: User is able to see all beings touching same body of water in map and see their chakra and health level

Jutsu Name: Serenity Drain Level 1
Jutsu Type: Ninjutsu
Description: User steals chakra and health from a target touching same body of water; must be touching a body of water to activate; must have water release chakra nature to learn
Jutsu Level: Novice
Chakra Nature: Yin Release
Jutsu Range: Medium
Effects: Every 5 seconds user steals 5% of health and chakra from a target touching same body of water

Jutsu Name: Water Style: Shark Bomb Jutsu
Jutsu Type: Ninjutsu
Description: User creates a shark out of water to attack target
Jutsu Level: Novice
Chakra Nature: Water Release
Jutsu Range: Medium
Effects: None

Jutsu Name: Water Style: Torrenting Shock Wave
Jutsu Type: Ninjutsu
Description: User creates a large amount of water within a given area
Jutsu Level: Intermediate
Chakra Nature: Water Release
Jutsu Range: Large
Effects: Consumes a large amount of chakra; all water-style techniques performed while water is in the area use less chakra

Jutsu Name: Water Style: Feeding Frenzy
Jutsu Type: Ninjutsu
Description: User creates five sharks that continue to attack opponents within an area of water; must know "Water Style: Shark Bomb Jutsu" to learn; user must be within an area of water to activate
Jutsu Level: Intermediate
Chakra Nature: Water Release
Jutsu Range: Large
Effects: Every 10 seconds a shark attacks every opponent within a given area of water and consumes a portion of their chakra

Jutsu Name: Water Style: Exploding Sharks
Jutsu Type: Ninjutsu
Description: User makes all sharks used in "Water Style: Feeding Frenzy" instantly explode; must know "Water Style: Feeding Frenzy" to learn
Jutsu Level: Intermediate
Chakra Nature: Water Release
Jutsu Range: Large
Effects: "Water Style: Feeding Frenzy" instantly stops and causes large amount of damage

Jutsu Name: Water Style: Shark Devastation Jutsu
Jutsu Type: Ninjutsu
Description: User creates a 100 sharks out of water to attack all enemies; must know "Water Style: Shark Bomb Jutsu" to learn
Jutsu Level: Expert
Chakra Nature: Water Release
Jutsu Range: Medium
Effects: Enemies get attacked 10 times; consumes a massive amount of user chakra

Jutsu Name: Water Style: Shock Tank
Jutsu Type: Ninjutsu
Description: User creates a dome of a large amount of water within a given area with everyone within given area inside; must know "Water Style: Torrenting Shock Wave" to learn
Jutsu Level: Expert
Chakra Nature: Water Release
Jutsu Range: Large
Effects: Everyone within given area in trapped within dome until jutsu is released; Consumes a large amount of chakra unless "Water Style: Torrenting Shock Wave" is in effect; Everyone trapped inside dome has a large decrease in speed and movement; all water-style techniques performed while water is in the area use less chakra; lightning-style techniques effect/damage everyone instead dome; fire-style techniques cannot be used

Jutsu Name: Serenity Drain Level 2
Jutsu Type: Ninjutsu
Description: User steals chakra and health from opponents touching same body of water; must be touching a body of water to activate; must know "Water Style: Serenity Drain Level 1" to learn
Jutsu Level: Expert
Chakra Nature: Yin Release
Jutsu Range: Medium
Effects: Every 5 seconds user steals 5% of health and chakra from all enemies touching same body of water

I like puppet jutsu and I think it could work, also it helps with variety in he future if added; I just think that you can have several different puppets that can be bought/augmented with the difference being that more expensive puppets are harder to control and/or are able to use more of the user's attack/defense/speed etc. and even add components to the puppet to make it more dangerous. Also I think having puppets should be expensive to buy and add components so it balances out:

Jutsu Name (Buff): Potent Potions
Description: Permanent Buff to users stats based on the ninja's learning of different poisons and toxins
Effects: Poison afflictions caused by user cannot be healed by jutsus lower than this buff

Jutsu Name (Buff): Puppet Manipulation Level 1
Description: Permanent Buff to users stats based on the ninja's ability to focus chakra within puppets; must know "Puppet Summoning Level 1" to learn
Effects: Puppets start with 30% of user's stats and increase percentage slightly with every buff permanently

Jutsu Name (Buff): Puppet Manipulation Level 2
Description: Permanent Buff to users stats based on the ninja's ability to focus chakra within puppets; must know "Puppet Manipulation Level 1" to learn
Effects: User is able to control more puppets once reaching certain levels in this buff

Jutsu Name (Buff): Added Puppet Toxins
Description: Permanent Buff to users stats based on the ability to add poison to attacks; must know "Puppet Summoning Level 1" to learn
Effects: User's puppet kenjutsu attacks now have 10% of poisoning target, increases chance slightly with every buff added permanently

Jutsu Name (Buff): Human Prosthetics
Description: Permanent Buff to users stats based on the ninja's learning how to form puppet limbs from the human body; must know "Puppet Manipulation Level 1" to learn
Effects: User takes less damage from attacks and less healing from any healing abilities with every buff permanently

Jutsu Name: Puppet Summoning Level 1
Jutsu Type: Ninjutsu
Description: User summons a puppet as their combat mode
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Low
Effects: User now attacks using one puppet instead of self fighting

Jutsu Name: Puppet Summoning Level 2
Jutsu Type: Ninjutsu
Description: User summons two puppets as their combat mode; must know "Puppet Summoning Level 1" to learn
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Low
Effects: User now attacks using two puppets instead of self fighting

Jutsu Name: Ninja Art: Puppet Substitution
Jutsu Type: Ninjutsu
Description: When enemy attacks, user switches places with next puppet in line-up; must know "Puppet Summoning Level 1" to learn
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Medium
Effects: For a certain amount of time; if an enemy attacks the user, the user switches places with the next puppet in line-up and the puppet immediately attacks the enemy

Jutsu Name: Ninja Art: Puppet Strangling
Jutsu Type: Kenjutsu
Description: One puppet grabs target for a certain period of time; must know "Puppet Summoning 1" to learn
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Medium
Effects: For a certain amount of time user cannot attack using one puppet; target cannot move or use jutsu

Jutsu Name: Ninja Art: Puppet Slash
Jutsu Type: Kenjutsu
Description: One puppet attacks target with weapon; must know "Puppet Summoning Level 1" to learn
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Melee
Effects: None

Jutsu Name: Ninja Art: Puppet Performance
Jutsu Type: Kenjutsu
Description: Each puppet attacks target with weapon; must know "Ninja Art: Puppet Slash" to learn
Jutsu Level: Intermediate
Chakra Nature: Yang Release
Jutsu Range: Melee
Effects: None

Jutsu Name: Ninja Art: Fire Act
Jutsu Type: Ninjutsu
Description: Puppets are now human puppets capable of using chakra; must know "Human Prosthetics" to learn
Jutsu Level: Expert
Chakra Nature: Fire Release
Jutsu Range: Medium
Effects: Target has 10% chance of being burned

Jutsu Name: Ninja Art: Water Conduct
Jutsu Type: Ninjutsu
Description: Puppets are now human puppets capable of using chakra; must know "Human Prosthetics" to learn
Jutsu Level: Expert
Chakra Nature: Water Release
Jutsu Range: Medium
Effects: Target is knocked down

Jutsu Name: Ninja Art: Lightning Strut
Jutsu Type: Ninjutsu
Description: Puppets are now human puppets capable of using chakra; must know "Human Prosthetics" to learn
Jutsu Level: Expert
Chakra Nature: Lightning Release
Jutsu Range: Medium
Effects: Target has 10% chance of being stunned

Jutsu Name: Ninja Art: Wind Achievement
Jutsu Type: Ninjutsu
Description: Puppets are now human puppets capable of using chakra; must know "Human Prosthetics" to learn
Jutsu Level: Expert
Chakra Nature: Wind Release
Jutsu Range: Medium
Effects: Target's defenses are weakened for a period of time

Jutsu Name: Ninja Art: Earth Attainment
Jutsu Type: Ninjutsu
Description: Puppets are now human puppets capable of using chakra; must know "Human Prosthetics" to learn
Jutsu Level: Expert
Chakra Nature: Earth Release
Jutsu Range: Medium
Effects: Attack has an increased chance at critical hit

Jutsu Name: Summoning Art: Five Digit Puppeteering Level 3
Jutsu Type: Ninjutsu
Description: User summons five puppets as their fighting skill; must know "Puppet Summoning Level 2" and "Puppet Manipulation Level 2" at control of five puppets to learn
Jutsu Level: Master
Chakra Nature: Yang Release
Jutsu Range: Low
Effects: User now attacks using five puppets instead of self fighting; puppets have 25% of user stats plus additional percentages from "Puppet Manipulation Level 1"

Jutsu Name: Summoning Art: Puppet Population Level 3
Jutsu Type: Ninjutsu
Description: User summons ten puppets as their fighting skill; must know "Puppet Summoning Level 2" and "Puppet Manipulation Level 2" at control of ten puppets to learn
Jutsu Level: Master
Chakra Nature: Yang Release
Jutsu Range: Low
Effects: User now attacks using ten puppets instead of self fighting; puppets have 15% of user stats plus additional percentages from "Puppet Manipulation Level 1"

And with you should have different kinds of puppets to buy/augment, but I thin puppets should be able to be damaged permanently as well:

Puppet 1: Mehaki
Weapons: Starts/holds with one sword; capable of replacing starting sword with swords, scythes, axes, etc.
Abilities: Each weapon adds to user stats

Puppet 2: Black Chelon
Weapons: None
Abilities: Adds significant defense to user stats; user has ability to use "Ninja Art: Enclosing Tortoise"; Black Chelon subtracts from users speed

Jutsu Name: Ninja Art: Enclosing Tortoise
Jutsu Type: Ninjutsu
Description: User summons Black Chelon and hides inside
Jutsu Level: Novice
Chakra Nature: Yang Release
Jutsu Range: Medium
Effects: Interrupts user's attacks and Black Chelon takes all damage

Puppet 3: Black Spider (Must combine two Mehaki)
Weapons: Holds up to six weapons (swords, scythes, axes, etc.)
Abilities: Each weapon adds to user stats

Puppet 4: Kenzik (Must combine one Black Chelon and one Black Spider)
Weapons: Holds up to six weapons (swords, scythes, axes, etc.)
Abilities: Each weapon adds to user stats; user has ability to use "Ninja Art: Enclosing Tortoise"; Kenzik subtracts from user's speed

Puppet 5: Chalizo
Weapons: Holds up to two weapons (swords, scythes, axes, etc.)
Abilities: Each weapon adds to user stats; ninjutsu style puppet attacks have significant increase in damage