in ranked arena currently if i face a bd is with flower guard, if i face an sb is an sb with 4th mystery and if i face an mb is an mb with root of warrior.

You say people don't use anymore root of warrior, but if you are running lightning treasure blitz or ay 4th, samui, darui blitz with MB you run it with root of warrior and those are pretty common now.

I don't know in your bracket but in uk bracket is so, so what Zelgais said is actually true. If you use shark bomb you just risk to not do anything against those teams.

P.S. About the shark bomb blitz team: The meaning of a blitz team is to deliver a ton of damage asap so using neurotoxin and healing jutsu makes no sense, because neurotoxin means no water enhancement or no nature energy gathering. There's mei to cc in that team. Using healin jutsu means that azure fang self heals if she is the fastest and that doesn't add any further damage, thing that doesn't make much sense. Better to use one of the other standard attacks in this kind of team.

P.P.S. Tenten gnw gives +15% critical chance with her passive and is a water character. Is a must have ninja in any fun water main team that bets on deliver chaos with neurotoxin

an healer or a cc remover (tsunade sannin war, jigokudo, kabuto, ino swimsuit, gakido), an enduring ninja (kimimaro, roshi, hebihime, gaara normal, han), or an annoying to deal with ninja (Fu the jinchuriki, Itachi, Tayuya).

Also Kushina could be an option, but only if you don't link her chase to kurenai (so you need to put her after sailor sakura).

Since you are able to use shark bomb every round you actually want the team to survive or you actually want the enemy be every round with the fear of what would happen if he doesn't deal with your main.