Kekkei Genkai Jutsu -
Ice Release: Frigid Grasp - When in some form contact is created when this jutsu is active, the core temperature of the user drops below freezing and transfers over to the target, resulting in the inner body and chakra system being attacked. The muscles, tendons, blood vessels, and nerves all freeze resulting in restricted movement and uncontrollable shivering. The skin will become hard and the control of the body is crippled indefinitely, the brain signaling the body to move now delayed by the chilling cold. The chakra circulatory system is not permanently harmed, but with the freezing temperature there is also a layer of chakra traveling through the target’s circulatory system and causing the same effect the body is experiencing.
This will delay the molding of chakra to perform jutsu but won’t last forever, just long enough to gain an advantage. However, in some cases if the exposure to this technique is focused purely on ones circulatory system, the delay of chakra flowing through the body is longer and with enough chakra intruding into the opponent’s system, will freeze it for a great extended period of time. The core drop may also cause a shock great enough to wake the user out of genjutsu as if they were thrown into a frozen lake, and can be on a timed release if the user can recognize incoming genjutsu but has little time to act on it. No-rank Offensive/Defensive jutsu.
Ice Release: Ice Clone Technique - The user may form clones purely out of ice generated from themselves or another source, but instead of illusions they work as shadow clones without being shadow clones. They take the exact image of the user and have a small fraction of their power, and are only capable of using ice related techniques. Despite being made of ice, they are not heavy, but are somewhat fragile and may break easily with a decent enough blow dealt to them. However, they are persistent and may be able to assist the original even if limbs are lost. They do not always disperse forcefully as most shadow clones do.
They may be used as distractions and obstacles for one to overcome but most of all they are used as a tool for deception and trickery. Since they are not used to their full potential, they are duplications created with small reserves of chakra. However, if the user wished, they may split their chakra in halves to help conceal themselves from a sensor or if they plan on using them for a greater role in combat.
Lastly, these Ice Clones may operate in a fashion similar to the Demonic Mirroring Ice Crystals technique in the sense that the user may quickly replace himself with one and hide in plain sight among the others. This makes it a great technique to escape with and deceive others, as the image of the user is projected into each of them. Timing is everything. C-rank Supplementary technique.
Ice Release: Hiding in Ice Technique - Very much similar to the Water Release and Earth Release: Hiding in Water/Rock techniques, the user may very simply hide within ice generated. Due to the combination of Water and Wind to create the Ice Release Kekkei Genkai, the user is also capable of the Hiding in Water technique as well as Mist just the same if time was dedicated into utilizing both water and ice in harmony with one another. While blended into a chosen element the user is otherwise undetected and untraceable as their chakra is concealed by the matter they hid themselves in.
This jutsu is dangerous in the hands of a ninja true to the art of deception, and they may even use all Ice jutsu in their possession. They cannot however resort to standard jutsu until at least the top half of the body is exposed. This jutsu requires no hand seals and is controlled entirely by will. C-rank Defensive technique.
Ice Release: Frozen Gravestone - If contact is made towards an object or person, Shinji may freeze them from the surface and often root the person to the spot with ice swiftly coating their bodies. The ice is thick and strong, chakra infused to help tighten it all together and prevent movement from being made. It can travel through most ninja weaponry and freeze targets from a distance but ultimately it is much too sudden to deal with unless you hold knowledge of the jutsu beforehand to react to it.
Originally developed by Shinji, he has frequently tested it against Fire Release techniques and notes that it can be melted with enough heat spanning across the body at once to counteract the constantly regenerating ice on the body, but it must be harsh and quick enough before it can regain the moisture lost and freeze over the person again. As long as at least one part of their body or clothing is frozen in some form, this ice will travel along the body, making this a very dangerous technique. B-rank Defensive technique.
Ice Release: Certain-kill Ice Spears - Simply put, a defensive technique to help guard the users life. Strong and sharp spears of ice will erupt around the user and even across the users own body creating a thick defense to bypass, skewering anyone and anything caught in the attack. This technique is usually awakened by those in the Yuki clan when their lives are in danger, but it may also be taught before that situation ever occurs. The spears may generate further spears on top of each other and scatter about, increasing the lethality of this technique. C-rank Defensive technique.
Ice Release: Indomitable Will - The users body will tighten up and reduce itself to a very cold temperature. Similar to Frigid Grasp, this technique is only meant to help endure attacks rather than inflict damage. Chakra is coating the body, allowing for the cells to become harder and resistant. Even the chakra circulatory system is now braced by an ice-cold defense to help prevent lasting injury, and the commands from the brain are also covered. The skin is now compact and cold enough to resist attacks that are sharp like swords and hot like fire, adopting properties similar to the Demonic Ice Mirrors.
This technique is meant to be used in order to help the user continue to carry out their will with incredible resolve, resolve enough to continue even after attacks both physical and mental, even internal. No-rank Defensive technique.
Demonic Mirroring Ice Crystals: Shiver - The abominable and tremendous ability, passed down only within the Yuki Clan. The "Kekkei Genkai: Demonic Mirroring Ice Crystals" is a technique wrapped up in many mysteries. It was said that no method in existence can defeat this technique. In an instant, multiple mirrors of ice are created around the enemy, reflecting nothing but Shinji. The opponent is trapped in a dome of twenty-one floating mirrors made out of ice. Twelve remain at ground level, eight float above the first twelve and angled toward the ground, and the final mirror is above the rest and facing the ground. Once Shinji has entered the mirrors, it's possible for him to move between the mirrors at the speed of light. It's near impossible to follow attacks send out from this incredible movement. As every mirror shows his reflection, one could say it's impossible to see all of Shinji’s attacks. Even if the opponent tries to attack the real body, Shinji will have already moved to another mirror. Without eyes like the Sharingan, it will be impossible to keep track of him.
If the mirror the user is in is broken, he can leap out of one of the fragments and continue his attack or move to another mirror. The technique requires a large amount of chakra to maintain, so Shinji’s movement becomes progressively slower the longer he maintains the mirrors.
The user can also form individual mirrors, not restricted to the twenty-one-mirror formation. He can create them high in the sky allowing him to take out airborne targets. The cold which emanates from the mirrors is also enough to cause snow to fall. Though they are made from ice, the mirrors are resistant to techniques related to both fire and blunt force.
Shinji has worked on this technique to add an additional freezing effect from the mirrors and his own aura as he passes through the mirrors and attacks, causing damage to the body much what his Frigid Grasp is capable of. This not only helps his target become weaker, but it also helps them become defenseless sooner, helping him maintain what chakra he has left and energy. He may also shatter them to use the shards for another purpose. S-rank Offensive Technique.