Metallic Sliver

Heartstone

Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Wild Pair

Whenever a creature enters, if you cast it from your hand, you may search your library for a creature card with the same total power and toughness, put it onto the battlefield, then shuffle.

Vivid Creek

Vivid Creek enters tapped with two charge counters on it.
{T}: Add {U}.
{T}, Remove a charge counter from Vivid Creek: Add one mana of any color.

Aphetto Dredging

Return up to three target creature cards of the creature type of your choice from your graveyard to your hand.

Snow-Covered Forest

Mana Leak

Counter target spell unless its controller pays {3}.

Muscle Sliver

Sol Ring

Acidic Soil

Acidic Soil deals damage to each player equal to the number of lands they control.

Snow-Covered Plains

Quick Sliver

Flash
Any player may cast Sliver spells as though they had flash.

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.)

Mana Cylix

Abundant Growth

Enchant land
When Abundant Growth enters, draw a card.
Enchanted land has "{T}: Add one mana of any color."

Rupture Spire

Rupture Spire enters tapped.
When Rupture Spire enters, sacrifice it unless you pay {1}.
{T}: Add one mana of any color.

Distant Melody

Choose a creature type. Draw a card for each permanent you control of that type.

Acceptable Losses

As an additional cost to cast this spell, discard a card at random.
Acceptable Losses deals 5 damage to target creature.

Brood Sliver

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

Snow-Covered Swamp

Shadow Sliver

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

Hive Stirrings

Create two 1/1 colorless Sliver creature tokens.

Winged Sliver

Crystalline Sliver

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

Necrotic Sliver

All Slivers have "{3}, Sacrifice this permanent: Destroy target permanent."

Magister Sphinx

Flying
When Magister Sphinx enters, target player's life total becomes 10.

Ancient Ziggurat

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

Kaleidostone

When Kaleidostone enters, draw a card.
{5}, {T}, Sacrifice Kaleidostone: Add {W}{U}{B}{R}{G}.

Sliver Queen

{2}: Create a 1/1 colorless Sliver creature token.

Prophetic Prism

When Prophetic Prism enters, draw a card.
{1}, {T}: Add one mana of any color.

Barbed Sliver

All Sliver creatures have "{2}: This creature gets +1/+0 until end of turn."

Sliver Overlord

{3}: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle.
{3}: Gain control of target Sliver. (This effect lasts indefinitely.)

Mindlash Sliver

All Slivers have "{1}, Sacrifice this permanent: Each player discards a card."

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.)

Snow-Covered Island

Acidic Sliver

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

Accelerate

Target creature gains haste until end of turn.
Draw a card.

Fury Sliver

Clot Sliver

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

Snow-Covered Mountain

Absolute Grace

All creatures have protection from black.

Spined Sliver

Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.

Reliquary Tower

You have no maximum hand size.
{T}: Add {C}.

Safe Passage

Prevent all damage that would be dealt to you and creatures you control this turn.

Might Sliver

Obelisk of Alara

{1}{W}, {T}: You gain 5 life.
{1}{U}, {T}: Draw a card, then discard a card.
{1}{B}, {T}: Target creature gets -2/-2 until end of turn.
{1}{R}, {T}: Obelisk of Alara deals 3 damage to target player or planeswalker.
{1}{G}, {T}: Target creature gets +4/+4 until end of turn.

Armor Sliver

All Sliver creatures have "{2}: This creature gets +0/+1 until end of turn."

Gemhide Sliver

All Slivers have "{T}: Add one mana of any color."

Vivid Grove

Vivid Grove enters tapped with two charge counters on it.
{T}: Add {G}.
{T}, Remove a charge counter from Vivid Grove: Add one mana of any color.

Fungus Sliver

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (It must survive the damage to get the counter.)

Abuna's Chant

Choose one —
• You gain 5 life.
• Prevent the next 5 damage that would be dealt to target creature this turn.
Entwine {2} (Choose both if you pay the entwine cost.)

Terramorphic Expanse

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Access Denied

Counter target spell. Create X 1/1 colorless Thopter artifact creature tokens with flying, where X is that spell's mana value.

Aether Flash

Whenever a creature enters, Aether Flash deals 2 damage to it.

Hibernation Sliver

All Slivers have "Pay 2 life: Return this permanent to its owner's hand."

Coat of Arms

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Victual Sliver

All Slivers have "{2}, Sacrifice this permanent: You gain 4 life."

Spectral Sliver

All Sliver creatures have "{2}: This creature gets +1/+1 until end of turn."

Abandon Hope

As an additional cost to cast this spell, discard X cards.
Look at target opponent's hand and choose X cards from it. That player discards those cards.

Rootbound Crag

Rootbound Crag enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.

Abiding Grace

At the beginning of your end step, choose one —
• You gain 1 life.
• Return target creature card with mana value 1 from your graveyard to the battlefield.

Heart Sliver

Amoeboid Changeling

Changeling (This card is every creature type.)
{T}: Target creature gains all creature types until end of turn.
{T}: Target creature loses all creature types until end of turn.

Lapse of Certainty

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Frenzy Sliver

All Sliver creatures have frenzy 1. (Whenever a Sliver attacks and isn't blocked, it gets +1/+0 until end of turn.)