Casual Slivers

[Doomie]

Artifacts
Mox Jet
Mox Sapphire
Mox Pearl
Mox Ruby
Mox Emerald
   5 Artifacts
Creatures
4xGemhide Sliver
4xHeart Sliver
3xPlater Sliver
4xSinew Sliver
4xMEtalic Sliver
4xMuscle Sliver
1xSliver Legion
1xDormant Sliver
1xDarkheart Sliver
   26 Creatures
Enchantments
4xShared Animosity
3xIntruder Alarm
   7 Enchantments
Instant/Sorceries
4xSummoners Pact
3xMind Spring
   7 Instant/Sorceries

Lands
3xTarnished Citadel
3xCity of Brass
3xGemstone Mine
3xGrand Coliseum
3xGlimmervoid
                 15 Lands
So the point of the deck is to win using Sliver to beat down (duh, right). Ideally on turn 1 or two, I want to have Intruder alarm , Gemhide sliver, and Heart Sliver in play. Intruder alarm lets me abuse of the tapping ability of gemhide while heart sliver lets me use them for mana. To draw, I included mind spring and Dorman Sliver (which I can find with Summoners pact). I'm on the fence about Dormant sliver because that would mean that if I had him in play I would have to find either Darkheart Sliver or another Summoners pact to find him. Ideally I should be using SP to find Sliver Legion. Shared animosity is there to deal the bulk of the damage. Any ideas on more draw or anything in general would be great.