Old Techniques with Difficulty Class

[Sabo]

Support Issue: Combat
The Issue: A couple of old techniques use the system of "Difficulty class" is this class points or your Rank/Class Level?
Link:

[👺 Usiel]

Difficulty Class? Can you show some examples?

[Sabo]

Same no Seirei (Spirit of the Shark)
Rank: “C” Rank
Skill: Passive
Effect: Dramatically increases the user’s chakra pool.
Special: A passive ability that is always active. Must have had the Same no Gishiki put upon the body.
Drawback: The user must start with this technique if taking the ritual upon birth. Chakra control remains unaffected.
Description: One of the two Same no Isei, or Powers of the Shark, the Same no Seirei (Spirit of the Shark) allows the user to obtain a dramatically larger chakra pool than they would normally have. The amount that the chakra pool increases is dependent upon the user’s specialties and their Difficulty Class.
Taijutsu/Ninjutsu Specialist
At “D” Rank, the Taijutsu/Ninjutsu Specialist Combo will gain a chakra pool equivalent to a “D” Ranked Ninjutsu Master.
At “C” Rank, the Taijutsu/Ninjutsu Specialist Combo will gain a chakra pool equivalent to a “C” Ranked Ninjutsu Master.
At “B” Rank, the Taijutsu/Ninjutsu Specialist Combo will gain a chakra pool equivalent to a “B” Ranked Ninjutsu Master.
At “A” Rank, the Taijutsu/Ninjutsu Specialist Combo will gain a chakra pool equivalent to an “A” Ranked Ninjutsu Master.
At “S” Rank, the Taijutsu/Ninjutsu Specialist Combo will gain a chakra pool equivalent to a “S” Ranked Ninjutsu Master

I found a Hozuki technique that says Difficulty Rank this time, look at the drawbacks.

Ikokujin (Alien)
Rank: D, C, B, A, S
Skill: Supplementary / Kekkei Genkai
Effect: Allows the user to shift their membrane and turn into a moving body of water, at near-instant speeds, when faced with physical NinJutsu and TaiJutsu that threaten to strike them. Can be performed during any form of ‘Transitional Membrane’, but higher ranks mean more chakra usage. Attacks dodged/reformed depend on the user’s highest attained rank.
Special: –
Drawback: Can only reform around attacks if the opponent is of equal difficulty rank or lower. If the user's difficulty rank is lower than the opponent, the attack and subsequent attempt to reform will fail and most likely will kill the user. Reforming does not guarantee the user is immune to whatever side-effects the attack they dodge can bring; for example, dodging katon will still get your burned with extra damage, etc. By default, this can only be performed done once per turn and once per day. Each rank the user is above ‘D’ allows them one additionally attempt per turn. ‘B’ ranked re-training allows the user to increase the amount of times per day this can be performed and is known by one each time.
Description: A product of time, experience and mastery over their own bodies, membranes and powers, the Hozuki have developed a way to morph their bodies into a sudden watery essence, allowing once threatening solidified attacks to easily be avoided by essentially moving across them effortlessly whilst in their watery forms. If, say, a solid blunt object like a hammer or even a giant rock came their way, the Hozuki will merely turn into water and let the objects seemingly move right through them, reforming right after the danger is cleared somewhere safe. Excellent when faced with overwhelming physical dangers, or many weapon toting opponents.
Limit: Hozuki. Must have 500 TP each in Suiton and Hozuki jutsu. Must have ‘A” ranked Kaishin Shimasu (Regeneration); ‘A” ranked Suibotsu (Submerge); Membrane Combination (Usumaku Kumiwaseru).

[Skulking Shinzu]

Pretty sure this is referring to Class Levels (D, C, B, A, S, etc).

[👺 Usiel]

Ya I believe this is for Class Levels, not Ranks.