Qyp
I honestly have no idea what to do... o _o Shizoni come in and do something... but what?
Shizoni has 9 attacks.
Use hidden mist technique, 3 attacks. This allows only Masa and Shizoni to know where everyone is as both know the jutsu.
Use clone technique to make multiple clones. 3 attacks.
Attack 3 Umi normally. Each clone gets 9 attacks that do 1/2 damage ...
You kill everything.
IF NOT, Umi miss most of their attack because of mist, batsu uses his tag to distract the Umi and begins to heal Shinzu.
Masa begins clone jutsu.
Maintain clones -1
7 attacks, +9 attack per clone at 1/2 power.
STILL NOT DEAD?
Shizoni drops mist - 1
Masa finishes clones, repeats shizoni's tactics.
Shinzu attacks.
Batsu finishes healing and attacks Umi.
If they are not dead by then, we're ******** other option, Use clones, clones use water prison, your chakra drains, but 8 Umi, x3 post = 24 attacks, +clones = 27 attacks
27-9 [for things shizoni does himself] = 18
18 / 9 =2
2 clones. 8 prisons = a lot of chakra. 30 + 8x 20prisons. 190 CP out of your giant tank.