Hyuuga Itsuko - Missing Nin

This is not a seal that Itsuko is capable of using, but a seal that was placed on her by others long ago.  Once mastered it will be very useful for her, but for now it is just painful and limiting.
Name: Spider Seal
Rank: S
Type: Fuuinjutsu
Element: N/A
Range: N/A
Handseals: N/A
Description: This seal is supremely destructive to most who find it applied to them.  Once the mark has been made only an equal rank fuuin unsealing technique is able to remove it.  This seal slowly feeds on a portion of the victim's chakra, converting it into a potent venom, which is stored within the seal itself.  Any time the victim then accesses their chakra for the purpose of a jutsu, a small amount of venom also leaks into their chakra network.  

This seal releases an amount of chakra venom into the chakra network equal to half of the amount of chakra spent, any time chakra is spent by the character.  This venom follows the rules of the chakra venom below.  Chakra Venom may not be used for the initial chakra costs or upkeep costs of any jutsu.

Name: Chakra Venom
Rank: A
Type: Venom(not poison..)
Materials: Chakra
Visual Description: Chakra Venom is a ghastly pale Indigo in color, slightly luminescent, and seems to have a fluid, liquid quality to it.
Ability: Chakra Venom is a toxic sort of chakra that is very damaging to humans who get it into their chakra network.  Like other forms of chakra, the venom is measured in points.  Chakra Venom naturally evaporates through tenketsu at a rate of 5 points per post while it is in the chakra network.  

Those who have Chakra Venom injected into their chakra network suffer a number of debilitating affects.  While it deals no immediate physical damage, the toxic imbalance in the chakra network causes agonizing pain.  Victims with durability 3 or less will find themselves helpless and paralyzed until the venom has run its course, or is otherwise removed from them.  Regardless of Durability, Chakra Venom causes the victim to bleed out chakra from all of their tenketsu, to an affect of losing 20 chakra per post.

This 20 chakra per post is reduced by an amount equal to the user's Chakra Control taken from Medical or Ninjutsu mastery.  For example, if the victim has either of those skills at, say, 5, then the amount of chakra lost each turn would be reduced by half.  Only the highest skill is used, and any remainders are rounded down.

Chakra venom will also stun the chakra network, disrupting the natural flow of chakra as it spreads and making it very difficult to shape chakra into jutsu.  While the venom is present in their chakra network, they receive no reduction of chakra cost benefits from any skill points, and the chakra cost of all jutsu raises by 25%.

While Chakra venom is in the victim's system it takes up space in their chakra network.  This means that if the victim uses anything that allows them to restore or refill their chakra, they will be unable to fill the space taken by the chakra venom in their network.  For example, if 5 points of chakra venom were in the system of a genin, their maximum chakra capacity would be 95, because of the space taken up by the chakra venom.

Finally, and this should go without saying, but people who reach 0 chakra will die.

Requirements:Spider Seal.   As with any other venom, Chakra Venom has no affect if eaten, breathed, bathed in, or otherwise contacted, unless it is injected directly into the body.  In most cases this would be in the victim's blood stream, however Chakra Venom must be injected directly into the victim's Chakra Network to have any affect.  This venom only has an effect on Human chakra, and so special forms of chakra such as Bijuu, Senjutsu, or the like will be unaffected.

Name: Body Replacement Technique
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Mid (7m)
Handseals: Tiger → Boar → Ox → Dog → Snake
Description: With this technique, users replace their own body with some other object, generally with a block of wood, the moment an attack lands. This creates an optical illusion, making the enemy think the attack was successful. From this, the user can use the lapse in the enemy's attention to attack or flee from the battlefield. Explosive tags can be attached to the replacement for an added surprise. It's a basic ninjutsu even taught at the Academy, but it's a useful art that can be applied in variety of situations.

Name: Cloak of Invisibility Technique
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Close
Description: This technique allows a ninja to take a cloak or a piece of cloth to blend into an object, making them invisible.

Name: Clone Technique
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Clone can travel up to 10m from user
Handseals: Ram → Snake → Tiger
Speed: Clones move at same speed as user
Description: A ninjutsu that creates an intangible copy of one's own body, without any substance. Since the clone itself doesn't have the ability to attack, and thus can only be used to confuse the enemy, it is mainly used in combination with other ninjutsu. It's a basic technique, but depending on one's ingenuity, it can be used effectively. The clones may not dissipate when they come into contact with something. These clones can be easily distinguished by persons with dōjutsu. A person with normal eyes can also distinguish the clones from the original, since the clones do not have shadows and will not disrupt the area around themselves with their movement (i.e. won't kick up dust, crush grass, etc.).

Name: Rope Escape Technique
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Close
Description: A basic technique taught at the Academy. It allows a ninja to free themselves if they have been tied up. How this is done is unknown.

Name: Transformation Technique
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Close
Handseals: Dog → Boar → Ram 
Description: Given all the missions ninja are assigned to - battle, intelligence gathering, diversions - this is a priceless ninjutsu. It is typically used to change into people other than oneself, but one also has the ability to change into animals, plants, and even inanimate objects like weapons. This gives this technique an abundance of uses. The transformation of a skilled shinobi will be exactly like the genuine article, so it will be impossible to tell the two apart. On the other hand, a transformation performed by an inexperienced person will have obvious discrepancies. It will be impossible to deceive anyone with it. This is one of the most basic ninjutsu, as such most shinobi know how to perform it. The transformation technique is considered to be among the more difficult E-ranked techniques, since it requires constant emission of chakra while mentally maintaining the form. On top of that, the user would be, most likely, interacting with the environment. This puts mental strain on an inexperienced ninja. Thus the best way to determine if it is indeed a transformation is to cause this strain upon the user; though this is of course not always successful.

Name: Tree Climbing Practice
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Close
Description: Tree Climbing Practice is a training method used to gain more skills with chakra control. This training involves focusing a fixed amount of chakra to the bottom of one's feet, and using that to climb a tree without using one's hands. If the stream of chakra is too weak, the user will lose their footing on the tree and fall off. If it is too strong, the user will be pushed away from the tree, causing the tree to break around the point of contact and the user will fall.

Name: Water Surface Walking Practice
Rank: E-rank
Type: Ninjutsu
Element: None
Range: Close
Description: This training method is used to gain better chakra control. To do this, the user has to be emitting a constant stream of chakra from the bottom of their feet and using the repellent force to walk across the water's surface. This technique is more difficult to master than the Tree Climbing Practice, because the amount of chakra that needs to be emitted changes constantly. It has also been shown that one can use their chakra to "skate" across the water surface, like an ice skater, instead of just walking or running. It is noted, that shinobi reach a state where they stand on water without even noticing it or basically even trying.

Name: Generic Sealing/Unsealing Technique
Rank: D
Type: Fuuinjutsu
Element: -
Range: Close
Description: With this technique the user is able to store a variety objects or jutsu within a scroll or other surfaces with the seal inscribed, depending on the user's skill with Fuuinjutsu. While sealing an object takes a considerable amount of concentration for those unskilled with Fuuinjutsu, unsealing an object is simple enough and can be performed on the fly so long as the symbol is accessible to the user and thus making it possible to unseal a weapon in the midst of battle. Sealing in battle, however, is not possible for those who are unskilled in Fuuinjutsu.

Name: Body Flicker Technique
Rank: D
Type: Ninjutsu
Element: N/a
Range: -
Handseals: Ram
Speed: +1
Description: The Body Flicker Technique is a high-speed movement technique, allowing a ninja to move short to long distances at an almost untraceable speed. To an observer, it appears as if the user has teleported. A puff of smoke is occasionally used to disguise the user's movements. It is accomplished by using chakra to temporarily vitalise the body and move at extreme speeds. The amount of chakra required depends on the overall distance and elevation between the user and the intended destination. (May not initiate an attack until the next post. This applies to all techniques akin to this jutsu.)

Name: Kai ~ Release
Rank: D
Type: Ninjutsu
Element: N/A
Range: Close
Description: Kai is a Ninjutsu which allows the ninja to avoid the effects of a Genjutsu illusion. After forming the needed handseals, the Genjutsu technique will not affect the ninja. The ninja can also use the technique on another individual who was unable to avoid the attack. After forming the needed hand seals, the ninja touches the one affected to end the affect of the spell.