A bare kunai would be pierced by the needles, even if its D rank Ninjutsu>free form weapon use (unless some sort of custom weapon)
(Kanashibari no Jutsu) - Temporary Body Paralysis Technique
Rank: D
Type:Supplementary
Range:Short-Mid
Chakra:15 (-5 per turn)
Damge Points:N/A
Description: Kanashibari no Jutsu is a simple Ninjutsu technique used to temporarily bind an animal (or animals). With the target frozen in place, the ninja can either take the opportunity to attack or to retreat. It can only be used against animal (summons or not) and works by forcefully using your chakra to restrain the summon physically by holding it in place. It can, however, be broken by outside means or brute force, making it less effective against bigger summons like boss summons or similar.
Note: lasts only as long as the user is focusing on the target to sustain it.
Using your chakra, form invisible ropes around an animal target and bind them forcefully. The stronger and bigger the animal the harder it is to restrain them. This also requires your full focus so you can only do freeform/taijutsu that doesn't require chakra use otherwise the animal will break free.
(Sakki) - Killing Intent
Rank: D - S
Type: Supplementary
Range: Short - Long
Chakra cost: N/A
Damage points: N/A
Description: Killing Intent pertains to the ability of the user giving off their pure killing intention and having it affect their opponent and others around them up to the point of paralyzing them. When the Killing Intent is particularly strong, it can even give the victim visions of their own gruesome death, nausea, pain, etc. This can cause the Killing Intent to be confused with a genjutsu, despite not being a genjutsu at all; simply a showcase of intention and power. The target will feel as if facing an overwhelming enemy and, even if not a sensor, will suddenly feel the pressure of the users chakra and its magnitude, making the effect that much more dramatic. To effectively be used, the user needs to focus on his target and concentrate on the killing intent towards it, meaning that one must see the target and be focused on it. The strength of the Killing Intent is dependent on many factors and go through several levels. If a difference in rank smaller than 2 ranks exist, the enemy will feel only the pressure and the ominous presence of their dark intentions. Its enough to lose your grasp on a weapon or stay clinched to it (depending on the situation) or even to hesitate in an attack, stumble or mess up a handseal, all depending on the situation and proximity. The effect is small and normally not that significant but can be effectively used to pressure enemies into making a mistake. If a difference of 2 ranks or more exist, the enemy will be frozen, almost unable to move as the overwhelming killing intent dominates their own conscious and riddles them with nightmarish versions of death. The paralyzation gradually weakens as time passes and can only be maintained while the user is focused on the target. The further away the target, the weaker it is and it can only fully paralyze a target within short range. Similarly, the more targets one focuses on, the weaker the effect is in each one (divinding the effects equally between the number of targets). Lastly, the stronger the user is in relation to the target, the stronger the effect will be. The target can counter Killing Intent directed at it through pain, "mind cleansing" techniques or their own Killing Intent.
Note: Intensity of technique depends on the rank of the user, distance to target and number of targets one is focusing on
Note: Can only be used once
Note: Lasts only while the user is focusing on it and while focusing on it the user can't mold chakra
One of the most overhauled, complained about and misused jutsu on the base!
So basically this is the result of concentrating your will on killing your enemy or enemies. Unleashing a palpable effect by instilling fear into them. What rank you both/all are, what range you are apart etc are all part of the result of this technique. So read it Carefully!
In fact, I suggest you read the whole thing several times before using it. Make sure the ranks are right to effect it. Know what ranges you are from the target(s) so you know how the technique effects them, Make sure to note that it only can be used once. It only fully paralyzes at short range of a lower ranked enemy and you can't mold chakra at all while focusing on it so if you want to shoot a projectile ninjutsu then use Sakki to mess up their seals or just distract them for a time or on rare cases, fully paralyze someone. Make sure you don't use chakra related techniques after starting Sakki or it ends instantly.