Darkheart Sliver

All Slivers have "Sacrifice this permanent: You gain 3 life."

Acidic Sliver

All Slivers have "{2}, Sacrifice this permanent: This permanent deals 2 damage to any target."

Crystalline Sliver

All Slivers have shroud. (They can't be the targets of spells or abilities.)

Galerider Sliver

Sliver creatures you control have flying.

Virulent Sliver

All Sliver creatures have poisonous 1. (Whenever a Sliver deals combat damage to a player, that player gets a poison counter. A player with ten or more poison counters loses the game.)

Cautery Sliver

All Slivers have "{1}, Sacrifice this permanent: This permanent deals 1 damage to any target."
All Slivers have "{1}, Sacrifice this permanent: Prevent the next 1 damage that would be dealt to target player, planeswalker, or Sliver creature this turn."

Clot Sliver

All Slivers have "{2}: Regenerate this permanent."

Crypt Sliver

All Slivers have "{T}: Regenerate target Sliver."

Cloudshredder Sliver

Sliver creatures you control have flying and haste.