Sneak Attack

[Anonymous]

Hi!
I have made a Sneak Attack deck, and I would appreciate any help what so ever.
here is the deck list:

NAME: sneak attack

// the combo
4 Sneak Attack

4 Crater Hellion
3 Laquatus's Champion
3 Nicol Bolas
1 Serra Avatar

//alternate victory
3 Phyrexian Negator

// protection
4 Duress
3 Hymn to Tourach
2 Powder Keg

// search/draw
1 Demonic Tutor
1 Demonic Consultation
1 Necropotence
4 Tainted Pact
1 Wheel of Fortune

// mana
1 Mana Vault
1 Grim Monolith
1 Sol Ring
4 Dark Ritual
4 Bloodstained Mire
2 Wooded Foothills
4 Badlands
2 Swamp
1 Snow-Covered Swamp
1 Mountain
3 Wasteland
1 Strip Mine

Some things I'm really not sure about:
first of all, are the Negators Really useful? I think so because if I can't get a Sneak Attack out (against control for example) then I need an escape route. Negators provide an excellent beatdown.
Also should I add Vampiric Tutor? I personnaly think it's too slow for this deck. But I may very well be wrong.
Finally, should I run more disruption or less? And is my disruption ok?

anyways I thank everybody who replies, and great work Zherbus (and the mods) for an amazing site!

[MoreFling]

Getting the sneak attack into play IS your big problem.

Therefore, I would do everything in my power to get it into play.
Use replenish, all moxen, lotus, etc, just get it into play, and beat around with nicol bolas.
Your deck seems extremely light on board control, which might be a problem against good aggro decks like Tubbies.

All I want to say about it right now.