Striking Sliver

Sliver creatures you control have first strike. (They deal combat damage before creatures without first strike.)

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Shadow Sliver

All Sliver creatures have shadow. (They can block or be blocked by only creatures with shadow.)

Rancor

Enchant creature
Enchanted creature gets +2/+0 and has trample.
When Rancor is put into a graveyard from the battlefield, return Rancor to its owner's hand.

Mountain

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.)

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Predatory Sliver

Winged Sliver

Muscle Sliver

Forest

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.)

Might of the Masses

Target creature gets +1/+1 until end of turn for each creature you control.

Heart Sliver

Cleaving Sliver

Preordain

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Swiftwater Cliffs

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {R}.

Thornwood Falls

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {G} or {U}.

Unexpected Fangs

Put a +1/+1 counter and a lifelink counter on target creature.

Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Draw a card.

Rugged Highlands

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {R} or {G}.

Mutagenic Growth

({G/P} can be paid with either {G} or 2 life.)
Target creature gets +2/+2 until end of turn.