I am getting pretty hyped for the new set =D. I haven't been in a long time.

I really dig the story revealed so far, plus a few very nice cards.

What I miss in this list is Aberrant Researcher/Perfected Form, which is the next step in Delver of Secrets' story;
and Elusive Tormentor/Insidious Mist. Just for all the possibilities.

*Looks*
Oh, I see it; it's a spider.

Avacyn, my angel, what has befallen you?
- Sorin Markov

I hate to be that guy, but Serra Angel being uncommon might had something to do with that reasoning. I don't think it's a fair argument against a mythic in limited.

I hope they will reprint it in some duel deck/commander as common (pretty unlikely I know), so I can have a playset of it with all the rarity types included. :D