Darkness Flame BURN BRIGHT!

Skill Name: Darkness Flame BURN BRIGHT!
Rank:
D: You jutsus will obey your every command.:Start
C: Your jutsus do 25% more damage:300 words
B: Your Jutsus do 50% more damage:500 words
A: (All previous things)Your seals are permanent, nothing holy/light can hurt your jutsus.:1000 words
Bonuses: ^^^^^^
Description:

This Skill was created by Kankri for Kankris jutsus.He created it in his missing ninja days.He noticed after the man came and took some dna he needed to bulk up.So he created this skill, it focuses on the other skilled Darkness Flame Control.Kankri mastered this in a few seconds actually there wasn't much to it.

The users flames turn golden as though they have been purified although within hitting something it turns pure black.When in this black state it does up to 50% more damage than before.Although this jutsu contains a lot for jutsus lets continue.Via this extensive training Kankri has been able a way to perma seal anything with his Darkness flame control technique, this works with the element earth, using the properties both on the users skin, 1 the seal is crafted with flames, what it boils down to is where the seal touches, instead of the skin the seal is forced into the pours where dirt and bacteria dirt is a form of earth, this instead of staying in one spot spreads threw out the body stopping the seal is impossible if you have no arms to do it, with this Kankri reinforced the seals making them all S ranked, although when all 9 seas are placed Kankri must do a 1000 word post explaining how his body reacted to this... effect.

Requirements: Be Kankri Vantas(NOT A CLONE I AM LOOKING AT YOU KOZAI!)

"D: You jutsus will obey your every command.:Start"

Define further please. Does this mean that you can tell your jutsus "last for as long as I want to"?

"A: (All previous things)Your seals are permanent, nothing holy/light can hurt your jutsus.:1000 words"

Please edit, that is pretty overpowered.

Are you still working on this Kanks? If not, I will delete it in 1 week.