Yeah, I don't know why they were written like that. The formula for damage feels weird, should be updated out.
I personally feel like poison techniques should be changed
1. To deal physical damage, either in gaseous or liquid state like their wind or water counterparts
2. To mention in each technique whether gaseous or liquid state is involved, directly, not being vague
3. The damage formula needs to be replaced, static damage per turn over a formula
Finally, another one that could have potential but is too managble and nerfed:
(Dokuton: Doku Hebi Rendan no Jutsu) - Poison Release: Poison Hydra Barrage Technique
Rank: S-Rank
Type: Offensive
Range: Short-Long
Chakra Cost: 70 (-20 per turn)
Damage Points: N/A
Description: Using the users blood as a template, this technique creates a gargatuan, 10 meter tall Hydra, completely made of thick poison. The user will draw blood in one of his palms and do 3 handseals (Hare, Ox, Tiger) clapping his hands and opening them. As he does, a thick guey orb of poison falls to the ground. As it touches the ground it expands rapidly and seemingly out of control into a gigantic 3 headed Hydra. This enormous familiar will be entirely made of either a generic poison (which will cause increasingly severe muscular pain, sensory numbness and damage if absorbed through the skin (30 damage per turn, effects last 5 turns after exposure), death if the poison is vaporized and inhaled) or a unique poison of the user (requires the user to have a liquid custom poison approved) and will be able to act and move through the users command. The enormous familiar can regrow body parts (if the user pays 20 chakra points) if attacked by techniques bellow S-Rank, each attack creating a new head. It not only can attack a target physically by making contact with it (it can move, stretch, deform, etc in various ways to attack the enemy in a freeform manner) but can also shoot from each of its heads a C-Rank bullet of the poison its made off (using this ability counts as a single move). The drawback of such a technique is sustaining it which drains the users chakra but also his focus and stamina.
Note: Can only be used once every 5 turns, lasting 4 turns each time
You draw blood, and then use your own blood as a template for the poison. It takes 3 handseals, and a clap, then for some reason you have to open them again. It has a large setup, which makes it difficult to pull off, note the "guey orb of poison falls to the ground" part. It becomes a 3 headed hydra, which can be made of generic poison, the effects specified above, or your own unique poison. It has the regrowth ability which does exactly make sense currently, how things work. You can also release a C-rank bulllet of poison from each head, once per turn, counting as a move.
Is there anything else you think is worth pointing out?