Sentinel Sliver

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

Synchronous 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.)

Ornithopter of Paradise

Shadow Sliver

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

Arcane Signet

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

Winged Sliver

Venser's Sliver

Plated Sliver

Talon Sliver

Plains

Overrule

Counter target spell unless its controller pays {X}. You gain X life.

Sunscape Familiar

Defender (This creature can't attack.)
Green spells and blue spells you cast cost {1} less to cast.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Disenchant

Watcher Sliver

Screeching Sliver

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

Marble Diamond

Marble Diamond enters tapped.
{T}: Add {W}.

Universal Automaton

Changeling (This card is every creature type.)

Avian Changeling

Changeling (This card is every creature type.)
Flying

Impostor of the Sixth Pride

Steel of the Godhead

Enchant creature
As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)
As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.

Sliver Construct

Walking Atlas

{T}: You may put a land card from your hand onto the battlefield.

Command Tower

Lancer Sliver

Sliver creatures you control have first strike.

Island

Gitaxian Probe

({U/P} can be paid with either {U} or 2 life.)
Look at target player's hand.
Draw a card.

Sky Diamond

Coordinated Barrage

Choose a creature type. Coordinated Barrage deals damage to target attacking or blocking creature equal to the number of permanents you control of the chosen type.

Mesmeric Sliver

All Slivers have "When this permanent enters, you may fateseal 1." (To fateseal 1, its controller looks at the top card of an opponent's library, then they may put that card on the bottom of that library.)

Idyllic Beachfront

({T}: Add {W} or {U}.)
Idyllic Beachfront enters tapped.

Lymph Sliver

All Sliver creatures have absorb 1. (If a source would deal damage to a Sliver, prevent 1 of that damage.)

Opaline Sliver

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

Azorius Signet

Suture Priest

Whenever another creature you control enters, you may gain 1 life.
Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Poultice Sliver

All Slivers have "{2}, {T}: Regenerate target Sliver." (The next time that Sliver would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

Metallic Sliver

Irregular Cohort

Changeling (This card is every creature type.)
When Irregular Cohort enters, create a 2/2 colorless Shapeshifter creature token with changeling.

Changeling Sentinel

Changeling (This card is every creature type.)
Vigilance

Enduring Sliver

Outlast {2} ({2}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.)
Other Sliver creatures you control have outlast {2}.

Hindering Light

Counter target spell that targets you or a permanent you control.
Draw a card.

Divine Light

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

Sinew Sliver

Stormscape Familiar

Flying
White spells and black spells you cast cost {1} less to cast.

Ponder

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.