Utsuho has more firepower, but Mokou has better survive-ability (or is it revive-ability in her case?).
I think we'll see our hell-raven fly through the phoenix and lose some clothes in the process. She then proceeds to burn part of Mokou clothes, which can't regenerate Nuclear Damage.
This reminds me of Falcon Punch vs Falcon Punch...and not the ones you usually see. I mean they both end up killing each other. I saw that kind of video on YouTube once...
That's one laughable flaming bird!!Immortal"Fire Bird -Flying Phoenix-"!!!