Clan jutsus

Genin
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Dark fireball
Element: Fire
Rank: Genin
Information: [Requires handseals] After the user has performed the neccesary handseals the user can blow out a dark fireball instead of a normal fireball
Cooldown: Once every 5th post

Dark lighting beam
Element: Lighting
Rank: Genin
Information: [Requires handseals] After the user has performed the neccesary handseals the user can shoot a small dark lighting beam from their finger, because it's genin ranked it doesnt take so very much damage
Cooldown: Once every 5th post

Dark pillar rise lv. 1
Element: Earth
Rank: Genin
Information: [Requires handseals] After the user has performed the neccesary handseals a dark pillar will rise from the ground blocking a weak attack, this pillar can only block genin jutsus to get a effect
Cooldown: once every 10th post

Dark water dragon
Element: Water
Rank: Genin
Information: [Requires handseals] After the user has performed the neccesary handseals a dark water dragon will rise from nowhere by absorbing water from the air and mixing it with your own dark chakra resulting in a dark water dragon that can block minor attacks and cause minor damage
Cooldown: two times a battle

Dark mini tornado
Element: Wind
Rank: Genin
Information: [Requires handseals] After the user has performed the neccesary handseals a dark mini tornado will appear under the control of the user, this can cause minor damage and send attacks like a kunai that is thrown back at the enemy
Cooldown: once in a battle

I will add more genin jutsus later

Chuunin
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Dark fire dragon
Element: Fire
Rank: Chuunin
Information: [Requires handseals] After the user has performed the neccesary handseals they can shoot a dark fireball at the enemy, while it is in the air it gets the shape of a dragon and increases the damage caused
Cooldown: once every 10th post

Dark lighting bolt
Element: Lighting
Rank: Chuunin
Information: [Requires handseals] After the user has performed the neccesary handseals they can make a dark lighting bolt in their hand and send it at the enemy, this jutsu is mid-long ranged
Cooldown: once every 10th post

Dark pillar rise lv. 2
Element: Earth
Rank: Chuunin
Information: [Requires handseals] Same as level 1 only increased effect
Cooldown: once every 10th post

Dark water beam
Element: Water
Rank: Chuunin
Information: [Requires handseals] By absorbing water from the air the user can release a beam against the enemy, since it's a chuunin ranked jutsu it doesnt take really much damage or really little damage
Cooldown: once every 10th post

Dark mini tornado lv. 2
Element: wind
Rank: Chuunin
Information: [Requires handseals] Same as level 1, only that the tornado is bigger, but not much
Cooldown: once a battle

I will add more chuunin jutsus later

Jounin
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Dark fire dragons
Element: Fire
Rank: Jounin
Information: [Requires handseals] After the neccesary handseals, the user will send out three dark fire dragon heads instead of just one
Cooldown: can only be used every 10th post

Dark lighting bolts
Element: Lighting
Rank: Jounin
Information: [Requires handseals] After the neccesary handseals, the user can make a lighting bolt in each hand and send it at the enemy, right after they are sent two others will come = 4 dark lighting bolts in total
Cooldown: Once a fight

Dark earth mountain
Element: Earth
Rank: Jounin
Information: [Requires handseals] After the neccesary handseals, a small mountain will rise, this can be combined with the dark waterfall jutsu to make a waterfall on the mountain allowing the user to make caves in the mountain too for combats
Cooldown: Once a fight

Dark waterfall
Element: Water
Rank: Jounin
Information: [Requires handseals] After the neccesary handseals, a dark waterfall will be made, this jutsu has to be combined with the dark earth mountain jutsu to get a effect
Cooldown: once a fight

Dark mini tornado lv. 3
Element: Wind
Rank: Jounin
Information: [Requires handseals] After the neccesary handseals, a mini tornado bigger than level 2 will appear under the controll of the user
Cooldown: once a fight

Kage / Sannin
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Dark dragons from hell
Element: Fire
Rank: Kage / Sannin
Information: [Requires handseals] The jutsu has two phases
[Phase one]
The user performs the handseals and a dragon skeleton is made behind the user
one post is used
[Phase two]
The skeleton grows skin and is surrounded by fire, now the dragon is under the control of the user for 5 posts, the dragon is strong
Cooldown: Once a battle

A thousand lighting needles
Element: Lighting
Rank: Kage / Sannin
Information: [Requires handseals] Two phases
[Phase one]
The user performs the handseals and puts their hand in the air as dark lighting chakra enters the sky
[Phase two]
Dark lighting needles falls down from the sky attacking the enemy
Cooldown: Once every second page in that topic

Dark earth cave
Element: Earth
Rank: Kage / sannin
Information: [Requires handseals] After the required handseals the user makes a cave in the ground that they enter, the cave is full of traps for enemies
Cooldown: Once a battle

Dark poisonous water
Element: Water
Rank: Kage / Sannin
Information: [Requires handseals] A wave of dark poisonous water is sent against the enemy poisoning the enemy if they are hit by the wave
Cooldown: Once every 10th post

Dark tornado
Element: Wind
Rank: Kage / Sannin
Information: [Requires handseals] A full-grown tornado appears under the control of the user, if the user ain't carefull the tornado will be turned against them
Cooldown: 3 times a battle