Hi there
 

I'm busy working on a black/ white deck. The idea behind the deck is to stifle my opponents strategy by removing key cards from his library (and gaining life in the process, and protecting myself through creature removal and mass creature removal. I like the bat/ vampire theme - they work well with the momentary blinks (Mangara also works well with the blinks). I have one angel of despair that is meant to come out using the dread return. She's just too beautiful to disregard, and the blinks help out with her as well.

I'd like your opinion of this deck as it works pretty well, but sometimes mana can be a problem. It's a bit heavy, standing at 63 cards,  and has a lot of cards that need commitment from either black or white mana. Any idea as to how I can make this deck a Standard tournament killer?
 

Deck List

Creatures
4 Blind hunters
2 Agents of mask
2 Mangara of Corondor
2 Belfry Spirit
2 Skeletal vampires
1 Angel of Despair
1 Soul collector

Artifacts
2 Orhzov signets
2 Jesters Cap

Enchantments
4 Pillary of the sleepless

Instants
3 Mortify
4 Momentary blink
3 Hide/seek

Sorcery's
3 Wrath of God
3 Diabolic Tutors
1 Dread Return

24 lands including two time spiral storage lands (one white/blue and one black /blue) - an even number of white and black lands

Flickerform's only real downside against Momentary Blink is that it's easier to make fizzle by destroying the creature in response, or anytime you don't have 2WW open to Flicker the creature out of harm's way.  But in exchange, you get a reusable effect.  This will put even more pressure on your mana base, however, so it's crucial that your mana curve come down as much as possible.  Agent of Masks is the first victim-- a good card, but it doesn't really support the theme of CIP effects and Bats, so out it goes.  In its place try Soul Warden, a great companion piece to any Flicker strategy and a very very affordable card.  I did say already that the selective library lobotomizing plan isn't working for you, so Jester's Cap can come out for the third and fourth Orzhov Signet.  And the three Hide & Seek?  Well, they can become three more Dread Return-- though honestly Zombify worls better here than Dread Return-- the buyback isn't all that great, and Zombify costs 3B while the Return costs 2BB, a significant difference in a two-color deck.  Come to think of it, Debtors' Knell would probably work at least as well as either of them-- unless your opponents typically have enchantment removal handy.  But I'm guessing they don't if you're running 4 Pillory of the Sleepless.  Actually, that reminds me-- Three Dreams would be quite useful to you now that you've got Flickerforms and Pillories to search for.  Not too many copies, though, since you already have Diabolic Tutor.