To Sarah Angel. Thanks for your questions...it actually gives me a good basis to provide more of my take on this deck.
I think there were a couple more dazes in my games, but I can't remember. I also didn't mention in my report where I had Daze protection for a spell and they were tapped out, but they ended up not having a Force. Some other thoughts on Daze:
* Daze > Duress/Therapy when you pass the turn after Flashing Rector.
* I don't like having to fetch for an Underground Sea on my main phase turn 1 that can get wasted.
* I'm more comfortable keeping a 1 island or fetch hand. Allows you to play a basic island turn 1 to scroll or brainstorm.
* Vs. basic swamp, two blue on turn 2 gives you more options.
* I play Gush, so I don't like the basic swamp. I think this also answers your question about the mana base...yes, we play the same number of lands and basics, but my strategy is less dependent on needing black mana on turn 1.
I would NEVER cut Yawg's Will. Not only does it make storming so much easier in a deck that has so many blue spells, but it also replays from the yard if you lose the counterwar on an initial flash. I almost always use it on my Bargain wins...probably sometimes out of laziness because I don't want to think of a creative way to build storm. Also, against beatdown decks, you'll need Will if Bargain can't get many cards.
Imperial Seal - again, with the daze and gush strategy, Sorcery for black is not good.
Mana Vault - not many spells to cast with that net 2 colorless mana (often as the loss of a blue or black mana). I don't play for the hard cast Academy as much, since I only run 1 therapy.
Gush maindeck - in my limited testing with this card, I just thought the deck needed one more draw engine card. Gush is free and you don't those islands in this low mana curve deck.
Rituals - I know Methuselahn (who also plays here at the Den) doesn't think they're necessary. I've never tested without it, but with my Razormane stategy, I prefer them in. Also, it's so much easier to storm out (which can get awkward at times.) Maybe I'm not being creative enough. In my playtesting and games, I've never regretted having them.
Form of the Dragon - All this card really does for me is give me comfort that I have an enchantment target if Bargain is trapped in my hand or if Bargain fizzes after drawing a bunch and you can flash rector again to get Form into play. As for whether the times it's used > it being replaced with some other card, I'm not sure.
Those are my thoughts. Happy to hear what others think.
Any idea is that UW deck was Commandeer Control?
I don't know. He beat (or tied?) Doomsday by not losing (Orim's Chants, Balance, Forces, Aura of Silence.) He lost a close one to GAT, but I think GAT player said he never saw any creatures. I only briefly saw the deck in action. I have no idea what the win condition was.