Making extremely good Water teams with full SSRs is pretty easy, because of how unbelieveably broken most of them are.

And that team doesn't have C type atk down, or cleanse, or dispel. It's a very good team, but if you want more survival ability you can swap Nike for Sol. You lose damage, but Nike with Ryu-Oh only brings heals to the table, whileas Sol brings so much more. Are you going to do that? In almost no content, no. Because you won't have survival issues.