Koi Shūrai

Kamigan
The Kamigan (神眼, Spirit Eye) is the mysterious dojutsu that appears in Koi only and allows for him to warp space/time and travel great distances using a set of eye and mouth shaped portals he calls Tenraishizuku (天来滴, Divine Drops), these are also used to track individuals and evade damage by redirecting ninjutsu. However the amount of portals he can open at a time and the distance he travels are both linked to his chakra level, in layman's terms the greater the distance or sheer number of portals equals a greater toll on his remaining chakra and remaining lifespan. It appears as glowing piercing red eyes.

Kenjutsu
His skills with a sword are shown with his mastery of the Santōryū (三刀流, literally: three sword style). He has the ability to use his three specially made katana simultaneously and with great prowess even giving a former seven swordsman of the mist a run for his money. His katana each have a name corresponding to a horseman of the Apocalypse: Kousen (交戦, War), Shikyo (死去, Death), and Kikin (飢饉. Famine).

Lightning Release
Koi has the ability to channel the static electricity from the air to attack, but this is different, because his chkara draws in vast amounts of it and when he attacks its been super charged within his body allowing him to attack with lightning style jutsu with the force of Kirin and under the right conditions he is able to channel pure lightning through his body and magnify that into a massive attack, but this can only be used once every 3 days.

Water Release
Hailing from the Star Country he watched how the moon controlled the tides and mimicked them as he learned how to perform ninjutsu. His skills have been said to be like he was one with the Moon and Tides as he rivaled the legendary Kurayami Clan's Shokugan power, But unlike the Kurayami he cannot create his own water, and always needs a preexisting source.