Two-Headed Sliver

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

Path of Ancestry

Path of Ancestry enters tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Acidic Sliver

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

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.

Mystic Monastery

Mystic Monastery enters tapped.
{T}: Add {U}, {R}, or {W}.

Mountain

Muscle Sliver

Fury Sliver

Heart Sliver

Root Sliver

This spell can't be countered.
Sliver spells can't be countered.

Winged Sliver

Telekinetic Sliver

All Slivers have "{T}: Tap target permanent."

Firewake Sliver

All Sliver creatures have haste.
All Slivers have "{1}, Sacrifice this permanent: Target Sliver creature gets +2/+2 until end of turn."

Forest

Metallic Sliver

Sidewinder Sliver

All Sliver creatures have flanking. (Whenever a creature without flanking blocks a Sliver, the blocking creature gets -1/-1 until end of turn.)

Cultivate

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Savage Lands

Savage Lands enters tapped.
{T}: Add {B}, {R}, or {G}.

Ward Sliver

As Ward Sliver enters, choose a color.
All Slivers have protection from the chosen color.

Jungle Shrine

Jungle Shrine enters tapped.
{T}: Add {R}, {G}, or {W}.

Mnemonic Sliver

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

Frontier Bivouac

Frontier Bivouac enters tapped.
{T}: Add {G}, {U}, or {R}.

Exotic Orchard

{T}: Add one mana of any color that a land an opponent controls could produce.

Plains

Shadow Sliver

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

Kodama's Reach

Crypt Sliver

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

Shifting Sliver

Slivers can't be blocked except by Slivers.

Basal Sliver

All Slivers have "Sacrifice this permanent: Add {B}{B}."

Watcher Sliver

Command Tower

{T}: Add one mana of any color in your commander's color identity.

Spined Sliver

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

Spectral Sliver

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

Sliver Queen

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

Talon Sliver

Clot Sliver

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

Spinneret Sliver

Crystalline Sliver

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

Plated Sliver

Hibernation Sliver

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

Toxin Sliver

Whenever a Sliver deals combat damage to a creature, destroy that creature. It can't be regenerated.

Cavern of Souls

As Cavern of Souls 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, and that spell can't be countered.

Bonesplitter Sliver

Secluded Courtyard

As this land 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 or activate an ability of a creature source of the chosen type.

Horned Sliver

Vampiric Sliver

All Sliver creatures have "Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature."

Quilled Sliver

All Slivers have "{T}: This permanent deals 1 damage to target attacking or blocking creature."

Mindlash Sliver

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

Screeching Sliver

All Slivers have "{T}: Target player mills a card."

Sakura-Tribe Elder

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Seaside Citadel

Seaside Citadel enters tapped.
{T}: Add {G}, {W}, or {U}.

Blade Sliver

Sliver Gravemother

The "legend rule" doesn't apply to Slivers you control.
Each Sliver creature card in your graveyard has encore {X}, where X is its mana value.
Encore {5} ({5}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Opaline Sliver

All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card."

Quick Sliver

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

Hunter Sliver

All Sliver creatures have provoke. (Whenever a Sliver attacks, its controller may have target creature defending player controls untap and block it if able.)

Birds of Paradise

Might Sliver

Harmonic Sliver

All Slivers have "When this permanent enters, destroy target artifact or enchantment."

Gemhide Sliver

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

Island

Farseek

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Necrotic Sliver

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

Magma Sliver

All Slivers have "{T}: Target Sliver creature gets +X/+0 until end of turn, where X is the number of Slivers on the battlefield."

Lotus Cobra

Landfall — Whenever a land you control enters, add one mana of any color.

Swamp

Mindwhip Sliver

All Slivers have "{2}, Sacrifice this permanent: Target player discards a card at random. Activate only as a sorcery."