I run this when I run water main:

You guys shouldn't sleep on chojuro... Guaranteed he's one of the most underrated ninjas in the game. Once you use him like this, with all these buffs, he's a monster. You could put chojuro where mifune is, I'm only running it like this because of all the LMCs in my server lol. Mifune clears buffs and shields ;P
I know you might not have those 2 (Mifune, Mei) but use this for future reference, or if anyone who has these ninjas.

Fukurukumaru (the cat) also works, and Darui could be used to replace Mei. Darui gives Mifune better combos with Fukurukumaru as your summon