Magic the gathering T2 sliver deck?

Have you concidered putting in Psionic Sliver for damage? If you have out the Sliver Legion the it would not be so bad. You could add Synchronous Sliver for vigilance and attack for damage and then use the ability of the Psionic Sliver and deal 2 damage more each. Don't even need to add blue mana just use Gemhide Sliver for the blue. Hope this helps.