Notes: This is the basic sliver horde deck, but since there is not sliver deck catagory, i chose Rat Deck. Slivers where, after all, based on the original Plague Rats. The deck is primarily blue/green. Green for creatures and blue for card drawing. I have added the only two slivers from the other colors worth playing with also, and since the Skyshroud Elf can filter mana toward those colors, it shouldn't be too difficult to play them. Ideally, one wouldn't pay any mana at all for the slivers, as the deck is virtually dependant on the recycle/aluren combo to draw and place many many slivers until a Heart Sliver hits the table and the huge horde attacks. Meditate works great with aluren, for when aluren is in play, your turn is really only there for an attack phase anyway.
Blue
2x
Dismiss
1x
Mana Severance
3x
Meditate
3x
Mnemonic Sliver
3x
Winged Sliver
Green
3x
Aluren
3x
Horned Sliver
1x
Mirri's Guile
4x
Muscle Sliver
2x
Overrun
3x
Recycle
4x
Skyshroud Elf
1x
Tranquility
Red
2x
Heart Sliver
White
2x
Talon Sliver
Green
2x
Reap
3x
Scragnoth
1x
Tranquility