Its only "major" problem is Dreadwyrm Trance.
Now there's absolutely no reason to stay for its full duration, basically using its Deathflare ASAP.

Personally, I think Demi-Bahamut should've been integrated into it (similar to Firebird Trance).

Other than that, I (mostly) agree.

That said, I'm still waiting on proper Egi glamours for it (e.g. Ramuh-Egi)...