Funny thing happened on the map with the Iron Golem - I placed Momiji down as I had before (since she's basically my best tank), only for the Golem to basically say, "ROFL," and stomp her. Turns out before I had the Goddess' Blessing buffs, and those make quite a difference...

But later I found out that if my Momiji is at full health, she can take a hit from the golem with... 8 HP left, of 3078. Related, seems like the Iron Golem has 3600 ATK. Weak tanks need not apply.