Slivahs!

[CbStrad]

Slivahs! 60 cards, 0 sideboard 2 {Mutavault} 4 {Temple Garden} 3 {Steam Vents} 3 {Hallowed Fountain} 3 {Sacred Foundry} 3 {Breeding Pool} 4 {Stomping Ground} 22 lands 3 {Sentinel Sliver} 2 {Thorncaster Sliver} 3 {Bonescythe Sliver} 4 {Galerider Sliver} 4 {Predatory Sliver} 2 {Megantic Sliver} 4 {Striking Sliver} 4 {Manaweft Sliver} 3 {Blur Sliver} 29 creatures 3 {Hive Stirrings} 3 {Simic Charm} 3 {Signal the Clans} 9 other spells Sideboard

[Bman0121]

You could add more slivers like in quantity not different slivers you have the best here dropping some of the non creature spells could be better like drop   {Savage Summoning} and  {Doom Blade} for more creatures also  {Chromatic Lantern} is very helpful with 5 colored decks

[Wally]

 {Ranger's Guile} and  {Simic Charm} would fit well here

[Mattao19]

I'd take out black and make it 4 colour bc 5 colours tough and  {Syphon Sliver} is meh at best like lifelink helps but idk if it's good enough for a sliver deck

[Mattao19]

There are plenty of red removal open lol but I can see why you want dreadbore it's great removal

[Wally]

I think that you would be more vulnerable to removal than they are, hence my hexproof suggestions.

[Bookmeister]

{Door of Destinies} maybe.

[Mattao19]

Ya Hellridersliver is a boss!!

[Tonygrabowski4]

I'd take out black and make it 4 colour bc 5 colours tough and  {Syphon Sliver} is meh at best like lifelink helps but idk if it's good enough for a sliver deck

Make it a five or three color deck.  IMO there is no reason to make it a four color deck.  B and W have the best slivers G and U second best.  Personally I would not use red unless you are in love with a couple burn spells.

[iMEAN U MAD]

I'm running 3 color slivers. Red, white, green. With 2  {Soul of the Harvest} 1  {Craterhoof Behemoth} . 3  {Door of Destinies} with 2-4  {Cloudshift}. You will have counters on door of destinies in no time! It's a turn 4-5 kill easy. I have also seen people add  {Door to Nothingness} with the  {Manaweft Sliver} this could be really fun! I will post my full sliver deck shortly here.

[Mlerner12]

Getting mana right is hard on four colour, and their aren't many good Blue slivers. I say take that out, and add in {Megantic Sliver} and {Strikung Spiver} if you don't have it.

[EvACiDe]

No {cavern of souls}?

[iMEAN U MAD]

Hell yes  {Cavern of Souls} I'm running  {Shimmering Grotto} cause ... That's what I have lol, but with  {Manaweft Sliver} shouldn't have too much trouble. I'm also running 4  {Lay of the Land} , which I'm wondering if it is overkill.... :-/

[EvACiDe]

Not running Cavern; too much money for a card that's on its way out.

I already have Megantic and Striking. I'm keeping Galerider for two reasons:

1) Flying. Duh
2) Cheap. Great for comboing with Manaweft and Blur

I absolutely agree, galerider for 1 blue as opposed to winged for 2? And I can understand your argument against cavern of souls, guess its going to have to be used in a legacy sliver deck soon along with {coat of arms}