I don't think you understand just how good Belial is. Particularly since you can fill your friendlist with Belial users with it. Fire SRs will walk all over your Water SSRs with that setup.

And, building ANY fantastic team in Kamihime is basically impossible unless you either whale a fuckton, or buy Miracle Tickets to perfect one team. This is particularly true in Nutaku, where our Bonus modifier sucks donkey cock (though, Nutaku may or may not have just boosted it...).

Anyway, point is. You work with what you have. That's part of the (non-whale) challenge. Belial is an incredible boon to you, and you'll see it once you start getting stronger.