Crypt Sliver

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

Muscle Sliver

Mountain

Winged Sliver

Lancer Sliver

Sliver creatures you control have first strike.

Cleaving Sliver

Bonesplitter Sliver

Plains

Forest

Predatory Sliver

Island

Homing Sliver

Each Sliver card in each player's hand has slivercycling {3}.
Slivercycling {3} ({3}, Discard this card: Search your library for a Sliver card, reveal it, put it into your hand, then shuffle.)

Meteor Crater

{T}: Choose a color of a permanent you control. Add one mana of that color.

Mnemonic Sliver

All Slivers have "{2}, Sacrifice this permanent: Draw a card."

Ancient Ziggurat

{T}: Add one mana of any color. Spend this mana only to cast a creature spell.

Sentinel Sliver

Sliver creatures you control have vigilance. (Attacking doesn't cause them to tap.)

Swamp

Two-Headed Sliver

All Sliver creatures have menace. (They can't be blocked except by two or more creatures.)

Unclaimed Territory

As Unclaimed Territory enters, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.