Siddha

Raido after the gain of his Rinnegan was at odd, he lost access to his name keep sake move the Kamui. However his extensive study of how the Barrier operated allowed him to circumvent his loss and make it his gain. Leading to the creation of the Siddha.

This jutsu allows Raido to in a sense erase his physical presence or mortal from the outer plain, and send part of his body to the Naraka Realm to avoid damage form enemy attacks. It allows him to phase through objects and disappear from the local time space and then phase back in. This jutsu works hand in hand with the Kamui as Raido created from his knowledge of the jutsu and ha all the same functions as the Kamui does. However despite this, it also suffers from the same drawbacks of the Kamui, something that not even Raido himself could discover a answer to. This move also can not be used for more than 5 minute either. While one must become intangible at some point the user also risk losing their physical body forever if they attempt to go over the alloted time limit or the jutsu. Showing this jutsu does present more risk than the Kamui ever did. However Raido has shown great ingenuity in the creation of this move in order to obtain some of his former power.

Left Eye Function
In its similarity to the Kamui each eye has a special function that allows it to employ the move The left eye's primary function is based on line of sight, and does not require physical contact to warp a target into the other dimension. By focusing to create a chakra barrier space and concentrating on the target within, The Siddha will distort space and the target will be drawn into the Naraka Path Realm, via King of Hells stomach. Raido mastery of this is no different from his use of the Kamui as he has been shown to pull targets get within second and drag them into the King of Hell bowels.

Right Eye Function
Like that of the Kamui and the left eye of this eye is the ability of intangibility, or erasing his physical presence. When active any part of Raido's body that overlaps with a solid object is warped to the Naraka Realm, making it appear as though he is phasing through them. Using this ability, Raido can dodge most attacks, and by overlapping his entire body into large objects, he can not only conceal himself from view, but erase all traces of his chakra. Raido ha sshown this functions as the Kamui does and allows him to enter and travel through the ground using this ability, allowing him to ambush his foes as he would in the past in battles. The same weakness applies as he is unable to establish any physical contact while intangible. He also seemingly possesses the capability to extend this intangibility to whatever he's touching at the moment of activation, as long as he is able to maintain some form of contact with at least a part of the desired item or person.

Trivia

 * Stating this in his own admission, Raido hinted that he is capable of finding anyone and teleporting to their location regardless of where they are. This is unconfirmed


 * This jutsu is based on the idea of Siddhashila which is am area in Jain cosmology at the apex of the universe, where the Jains believe people who have become Arihants, or people with infinite knowledge, go after they die and attain moksha or nirvana. Such people are called siddhas after they discard their mortal body, hence the origin of the term. Hence keeping with the jutsu abiities