Wow...the incorrect stuff in the OP is astounding.

Well here I go...

"Poison fog: No use at all, unlike Midnight Blade "Sealing Slash" which cause pretty high damage plus acupunture."

Considering this is an AoE that can crit multiple enemies combined with Neurotoxin and poison them? No thanks (Yes I know Shark Bomb does a lot better job so don't even start)

"- Healing Jutsu: Perhaps the most used mystery of Azure Fang. But I want to make a comment on this one. Let's be honest, Breeze Dancer Mystery (all debuff removal + cooldown reset) and Scarlet Blaze Mystery (all debuff removal plus immunity + shield) is sometimes BETTER than Azure Fang healing. That's because Ignition is a bad enemy for her mystery (no hp recovered, just debuff removal. And you can receive a new debuff for the entire round, unlike Scarlet Blaze Mystery that will prevent additional debuff for the entire round, plus shield that acts like a hp recovery (additional hp), or Breeze Dancer mystery that will reset cooldown)."

And this is why most serious water mains run multiple healers. Or just go P1 Shark. Ignition is everywhere, but it is also a mass cleanse, on top of that, combine with Experimental Ninjutsu or even Substitution and she'll be harder to take down and can heal nearly every turn.

"The last technique that almost no one using (the one that punch 1 target)"

Incorrect, it is used in 9tails. Not every mystery is meant to be for PvP...

"- Knife attack? Almost useless (the critical hit rate of this attack is low)"

You mean just like how most of the 1st standard attacks are generally terrible...especially since you don't need to level to have them? Why would they buff the basic standard attacks? They won't.

"Healing? Not bad, but not good either (it's only one mate, "ONE", with small chance of two)"

Used more to disperse a debuff for a real healer to start healing. Or to recover from the Life Lost from Experimental Ninjutsu.

"- Water Whip? Acupunture needs combo, and rarely happens."

100% incorrect....it has a HIGH CHANCE to combo...it doesn't "rarely" happen. This is just you having bad RNG.

"Sakura punch? Well, it's Sakura Punch"

This was "Decent" when reserve seal was a thing without its buff/nerf thing it recieved. But water main isn't meant for damage (slightly debatable but I'll go into detail later). So why would you run this standard?

"3. Chase (this where my protest is):

The entire chase of Azure Fang has no effect like Fire Main or Wind Main, nor it has Nin+Tai attribute like Lightning Main or Earth Main (that even has double nature attribute)."

Doesn't even matter, Water Main is generally used as a main interrupt CC through Chase. Very rarely will she use the other chases that isn't Dissection Blade or Trumpet.

"4. Passive 1:

Water Main passive is nearly unrelatable to make a versatile lineup. It's water oriented or healer oriented, unlike another Main which can support almost any lineup."

So wrong...each main supports teams in a different way. First, they all have an elemental enhancement, so we won't talk about Water Enhancement. You have Neurotoxin which offers a lot of versatility for your team for a guaranteed CC. Or be able to chaos multiple enemies. You have Healing Tips to support water main as a healer and other healers. Gathering Energy is used in specific line ups and isn't really needed outside of that niche few. Also you should be more specific about this.

"5. Passive 2

The best passive over all other Main. Love it!"

Be more specific. the 4th row talents overall are really good and depends on line up depends what you need. A lot better than Fire Main on last bit of talents for example. (Sorry Fire Mains)

" Water Bomb Jutsu (medium improvements)

Water - Ninjutsu

20 CP

B. Cooldown: 1 round

Cooldown: 2 rounds

Cause water attribute damage to up to 6 units of your opponent's lineup with a high chance (70%) of causing critical. This attack will absorb all chakras from your opponents."

Man...I feel sorry for wind mains, be able to have a higher chance to hit their team while they generate clones....totally not balanced.

"3. Healing Jutsu (medium improvements)

Ninjutsu

0 CP

B. Cooldown: 0 Rounds

Cooldown: 3 Rounds

Remove all debuff from all units in the selected lineup (it means you can choose lineup, like in Ranked Battle, to heal) and recover 40% of lifepoints."

No, god no...that isn't a medium improvement. WIth Experimental Ninjutsu, it has a 2 round CD and I can just keep my teammates alive....no....god no....Especially in Bonds/GNW (for example) they'll be targeting the Water Main immediately. Rather not be an immediate target.

I can't even get throught he rest of the post for how bad they are...

Water Main is fine where it is at. You have P1 Water Main that runs Han/Kage Madara, you have Water Main in Immortals (Which sadly doesn't work as well as other teams.) You just single handedly break water main....

"I like the way you explain the details of my advice on Water Skills, but seriously my only comment is actually the orientation of the water and healing lineup (Passive 1). Azure Fang could not stand alone as a support, she is very vulnerable, especially ignition. My advice to tweak her so she could standalone."

She is only vulnerable if you allow her to be. You have 3 other ninjas to take care of that. This isn't a 1v1 game, its a 4v4 (Or in the case of bonds 8v8 or GNW 12v12).

I love how then you start comparing her with other passives, implying that those are fine yet Water Main isn't? Most of the Mains only run like 1 of 2 possible talents (sometimes 3) of the talents depending on the team. Just like *Gasp* Water main. Same with 2nd row talents. Meanwhile you ignore the fact she has a really tanky clone talent. Which you can summon more through summon mystery.

Then you start saying she only works with water teams or as a healer....

She can be a P1 Shark, P4 Shark (Just a troll idea don't take this one seriously as it involves Madara Konoha Founder + Iruka and Itachi Anbu), Healer, Combat healer.

While not as versatile as Fire Main, but she has a lot better of the talents compared to other mains. A 40% Dodge to dodge 2 attacks, Extra Healing, Reducing CD of Mystery while increasing Crit, Chakra Battery, Tanky Clone, Poison.

Right now, OP, you're really showing that you have no idea what you're talking about. I main Water Main and do just fine but I run 1 of 3 immortal set ups. 1st Immortal Kushina, 2nd Immortal 4th Hokage using Pakura and Jigokudo (FYI this line up takes care of ignition no problem) and Han/Roshi/Sailor Sakura. I can run P1 Water Main, but I don't like it cause it is *my imo.