Due to their herritage, each of the Kokusan clan has the muscle structure of an anaconda (the most powerful constrictor). This makes them stronger than any man can really compare to. Their sheer muscle mass not only improves their strength to incomparable heights, but their speed as well. They are easily faster than the 4th gate opened by rock lee. No, you are not being this fast with all those other specialties and powers.
The hides of the Kokusan clan is harder than that of any known reptile. It is as hard as steel, yet it is not effected by the corrosive acid the members produce.
Lower the material durability
All those Taijutsu ( Aside After-image which is also owned by Kento) are owned and developed by Zane Hataro, remove them.
X ranked is only for kages, sages, and organization leaders. I am not letting every asshole be X.
Sense the Kokusan clan descended from Orochimaru himself; they have massive regenerative properties. As a genin they can only heal minor cuts, bruises, and burns each post. As a chuunin, they can only heal minor stab woulds, cuts, bruises, and burns. As a Jounin they can now even heal from libs or digits being cut off. At S ranked they can survive fatal wounds such as stabs to the heart or even regrow vital organs; however, if their head is cut off they die. Only at X-Ranked can a clansmen's head be cut off and them not die completely. If their head is reattached then they can 'come back to life'.
Please make a chart of how long it takes to regenerate each type of injurie, and no surviveing decapitation.
Name: Acid Rain
Rank: S
Type: Kekkei Tota
Element: Acid
Description: Passed down from one leader to the next, this technique is only know by the clan leader. This technique is just as it sounds. The user will make a series of hand signs and then raise his hands into the air. Then a moment later, rain drops of black acid will start pouring down. This technique is extremely devastating to the environment and is usually a certain killer. This is due to it's unavoidable nature. This usually covers a 300m radius.
Nerf this
Name: Invisibility Jutsu
Rank: C
Type: Supplementary/ KKG
Element:
Description: The Kokusan clan has the ability to turn completely invisible. But this is no ordinary invisibility jutsu; for when they turn invisible, not even sensory ninja can detect them. Byakugan nor Sharingan can see them either. This one technique that makes the Kokusan clan so deadly
Merf this as well..
Also, many of your jutsu are a lower rank then their power dictates, please bring their ranks up to match the pwoer and ablity of each jutsu.
Name: Gathering of the Snakes
Rank: A
Type: Supplementary/ KKG
Element:
Description: If Orochimaru is somehow sliced in half by the opponent, snakes come from the halves and bring him back together. Although this doesn't require chakra on the behalf of the Kokusan clansmen; it is only able to be used by higher ranks
This will cost a large sum of chakra to use.
https://shadowxstorm.rpg-board.net/t37-legendary-jutsu#90 Read this.