Puzzles and dragons

So, I've been playing like mad and accumulating materials to evolve Kirin and Red Samurai. But I wonder, what's the weakest descended dungeon that a noob Kirin team could take down through sheer force/luck? I managed to tackle the Wind Dragon - Master dungeon (it dropped!) and I'm feeling feisty. Plus I'm tired of farming/torturing myself trying to get a single Naga to drop.

My super awesome team:

 Spoiler

Also, I have 4 Tamadra taking space. Should I feed them to Kirin when I evolve her?

edit: fixed

Also, no way I can do Hera-Is lol. I guess I'm going back to grinding.