The damage is added to the already existing cats (so 1600 damage). Additionally, the debuff is there IF a person hits the trails. I changed the debuff to something similar, yet probably more powerful.
Let me rephrase the text for better understanding:
Extension: Gorogoro Niji (Thundering rainbow), 800 Kidou
Description: The extension of this spell infuses the cats with even more Reiatsu, thus resulting in them to become more powerful and doing twice the damage. Each Cat leaves a rainbow trail behind when it jumps around. The maximum length of the trail is 1m and it vanishes on contact or when the cat itself vanishes. Should someone touch these trails, the electricity stored in it jumps over, causing the muscles to numb. For the next turn, this persons shunpo/sonido uses are reduced by two (Speaking, only a person that could do 3 or more Shunpos a turn would be able to use 1 or more Shunpos). Even though a person could be hit by the trail multiple times per turn, the effect does not stack in one turn. However, should he hit a trail in his next turn, the debuff is activated again. All other rules of Gorogoro still apply.
Incantation: Thunder forms lightning to shine in the night. Sparkle through your opponents with mighty electricity. Bakudou #48 part two, Gorogoro Niji
Denied. Again, I appreciate that you're trying to extend the joke, but the Nyan-Nyan song and the Nyancat aren't really the same thing. It's also taking a very amusing, but simple kidou and turning it into something complicated and confusing. I don't think this spell needs an extension, especially not if the extension is just for the sake of having an extension.
The Walking Dead - Chiyudou #73, 2,400 kidou
If a target is near a point where they would lose consciousness, this spell gives them a temporary boost in adrenaline. The rush allows the target to remain conscious for three turns past their usual endurance limit. The spell may remain dormant for up to five rounds, only activating once the user would otherwise be unconscious. Unless the target is healed sufficiently by the time the three turns are over, the target will immediately fall unconscious when the spell wears off.
The spellcaster traces the symbol for 忍 anywhere on the target’s body and speaks the incantation.
Incantation: The dead tree stands, the body floats, the spirits of bones lock themselves away. Endure and stand. Chiyudo #73
Approved as above. Removed the combat limitation but limited it to up to 5 rounds dormant. It's a bit much if you just cast it at the start of any battle and automatically get an extra three rounds, combat or not.
mk, so I've never submitted kidou before.
Compelling Rest - Chiyudou #99, 10,000 kidou
A reiatsu induced coma, this chiyudou is used as a last resort when a patient needs to be unconscious for surgery or healing to be performed. Often used on uncooperative patients and patients who are too strong to be put under by general anesthetics, the effects last for three turns and slowly wear off thereafter. Because of the strength it takes for this chiyudou to be implemented, the healer who uses it will feel the adverse effects of such a sudden drop of reiatsu, and another healer will be needed to be present in order to perform the surgery.
To use this chiyudou, the wielder places their hands on the target’s temples and speaks the incantation.
Incantation: “Slow the stream, goddess of the moon. Pull us under into enveloping depths. The air is thick, the wind is slow, fall into my arms. Chiyudo #99!”
Approved with changes below:
Compelling Rest - Chiyudou #71, 2200 kidou
Description: Compelling Rest is used to put patients to sleep. Often used on uncooperative patients and patients who are too strong to be put under by general anesthetics, the effects last for five rounds and slowly wears off thereafter. To use this chiyudou, the wielder places their hands on the target’s temples and speaks the incantation. They must be able to channel the spell uninterrupted for three consecutive rounds in order to sedate the patient.
Incantation: Slow the stream, goddess of the moon. Pull us under into enveloping depths. The air is thick, the wind is slow, fall into my arms. Chiyudo #71!
Incantation: Slow the stream, goddess of the moon. Pull us under into enveloping depths. The air is thick, the wind is slow, fall into my arms. Chiyudo #71!
The only reason for its high cost/rank was to avoid balance issues surrounding using the spell in combat, but it's not really combat spell nor worthy of the #99 spot. In the updated version, it takes 3 rounds to take effect, limiting its usefulness in combat (if you can hold someone still for three rounds, you could do worse things to them), but is at a much more reasonable rank and cost.
I also did not much like the use of the word "coma" since it implies something more permanent. Little details.