All Sliver creatures have haste.

All Slivers have ", Sacrifice this permanent: Target Sliver creature gets +2/+2 until end of turn."

All Slivers have ", : Regenerate target Sliver." (The next time that Sliver would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

Flash (You may cast this spell any time you could cast an instant.)

When Vedalken Aethermage enters the battlefield, return target Sliver to its owner's hand.

Wizardcycling (, Discard this card: Search your library for a Wizard card, reveal it, put it into your hand, then shuffle.)