Does this cost chakra

[Ichiro]

This is the domain jutsu of katon, If I use the D C B A S etc version of this jutsu in conjunction with a katon jutsu does that mean it costs Jutsu cost + Domain cost? or Just jutsu cost

IE I have enkou shinka A rank and I want to use mythical pheonix fire which is a C rank jutsu and it says

Distance of fireballs and intensity of flames depends on the highest rank known of 'Enkou Shinka'. Up to one fireball can be made, plus one more each time retrained.

So would I have to spend A rank chakra to use the domain then C rank for the actual pheonix flame jutsu?

Enkou Shinka (Essence of the Sacred Flames)
Rank: D, C, B, A, S [625]
Type: Supplementary / Katon Ninjutsu
Range: 0 - 50 meters
Chakra: Mid
Special: Allows the user the ability to create, control and move Katon (Fire) chakra of their own for multiple purposes. Degree of heat and effect of flame depends on the highest rank known.
D: 10 meters
C: 20 meters
B: 30 meters
A: 40 meters
S: 50 meters

Description: Katon, the birth of the flame itself. With but a mere thought, masters of the flame learn to birth their fire over large expanses. Intense training opens the door for other techniques, but they all rely on one simple core - the user's ability to birth a flame from a distance.
Domain: Katon.

[vegapunk]

I am pretty sure that the cost for the domain is just to the point of gaining the skill required to get to an A-Ranked level of katon usage. So, you would only have to use a C-ranks worth of chakra instead of both C & A ranks.

[☆ F ☆]

Actually, Ichiro, your interpretation is correct. If the technique shows consumption, Vega, we can't just ignore that.

Remember, supplementary jutsu still take chakra; passive ones don't.!

[Icarus]

So If I used a C rank that has its damage and distance determined by that domain jutsu then I use More chakra?