Hey there,

You should go for a big dps/carry as you next ninja, you have several barrier, support, buff ,shield, etc... ninjas, but you miss a good pos1.

For now, you could try some shizuka comps, like the Gaara, shizuka, Samui swimsuit :

Use shark if you don't have flood dragon yet.

Or you could stay with a main pos1. Water main is a good option for that :

Or you could also use Shira and pray for the RNG god with comps like that xD