Rain might have been able to cause the attack on Zuri to miss with Guardian's Power interrupt and the cover would mean the Twiggy attack would miss Rain also (22 vs. AC plus cover misses Rain).
I've started building a post where I've rolled (quite badly), but it be nice to keep Zuri on her feet, given that should drink her potion and attack this go.
I'll wait for jbear and save the post I'm working on. It assumes Rain uses Infernal Wrath instead and shifts to H19.