Name: Shiki Fujin (Dead Demon Consuming Seal)
Rank: S
Class: Offensive
Range: Short Range
Hand seals: Snake → Boar → Ram → Rabbit → Dog → Rat → Bird → Horse → Snake → Clap Hands
Description: This seal invokes the powers of the death god (shinigami). Once called upon, the death god hovers behind the user and inserts its arm into their soul. At this stage only the user can see the death god. To perform the seal the user need only grasp the target. The death god's arm extends from their chest and grabs the soul of the target, immobilizing them and allowing them to see the death god as well. Soon after the sealing is completed the death god consumes the soul of the user as well, sentencing them to an eternity of battle with their target in its stomach. A swirl-pattern is left on the stomachs of those that have had something sealed within them using this jutsu.
Original User: Muramasa musei.
pupils:

Name: Tajū Kage Bunshin no Jutsu (Milti Shadow Clone Technique)
Rank: A
Class: Supplementary
Range: All Ranges
Hand seals: Technique specific hand seal
Description: This jutsu is basically a massive version of the Shadow Clone Technique. Instead of a few clones, it creates a few hundred clones (or a number of equal grandeur). This is considered a forbidden jutsu, because it can potentially be dangerous to the person performing it, seeing as how all of the clones are given an equal amount of chakra directly from the user.
Original User:
Pupil:

Name: Sojasosai no Jutsu (Twin Snakes Mutual Death)
Rank: A
Class: Offensive
Range: Short Range
Hand seals: Special Technique Seal
Description: This forbidden jutsu is a murder/suicide attack; killing both the user and the target. The user makes a one-handed seal with both their hand and the intended victim's. Two snakes are then summoned from the user's sleeve, biting both their wrists and killing them with deadly venom.
Original User:
Pupil:

Name: Soen: Hitomi Goku (Puppet Performance: Skillful Achievement with a Human Body)
Rank: A
Class: Supplementary
Range: Short to Mid Range
Hand seals: None
Description: A puppet performance technique where chakra threads are attached to various spots on a person's body; the head, torso, both arms, and both legs. The person being manipulated gains the ability to not only use their own techniques, but the skills of the puppeteer as well.
Original User:
Pupil:

Name: Fushi Tensei (Living Corpse Reincarnation)
Rank: S
Class: Supplementary
Range: Short Range
Hand seals: None
Description: This jutsu allows the user to transfer his mind to someone else's body. If repeated periodically, it basically grants the user immortality as long as they can find new host bodies and keep the host alive. The user can only perform this technique once every three years. It also seems that when the three years are almost over, he is forced to move into another host, as the previous one begins to reject him. Presumably, if he had a proper container, he could stay in the host for a full lifetime.
Original User:
pupils: