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

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

Azorius Guildgate enters the battlefield tapped.

{T}: Add {W} or {U}.

Hellbent -- As long as you have no cards in hand, Sliver creatures you control have "{T}: This creature deals 1 damage to target player or planeswalker."

Bloodfell Caves enters the battlefield tapped.

When Bloodfell Caves enters the battlefield, you gain 1 life.

{T}: Add {B} or {R}.

{T}: Add {C}.

{3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

Sliver creatures you control have double strike. (They deal both first-strike and regular combat damage.)

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

Enchant creature

At the beginning of your upkeep, you may look at the top five cards of your library. If you do, you may put a creature card that shares a creature type with enchanted creature from among them onto the battlefield, then you put the rest of those cards on the bottom of your library in any order.

Sliver creatures you control have flying and haste.

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.)

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

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

{T}: Add {C}.

{1}, {T}, Sacrifice Cryptic Caves: Draw a card. Activate only if you control five or more lands.

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

Dismal Backwater enters the battlefield tapped.

When Dismal Backwater enters the battlefield, you gain 1 life.

{T}: Add {U} or {B}.

As Door of Destinies enters the battlefield, choose a creature type.

Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies.

Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.

Whenever a Sliver deals damage, its controller gains that much life.

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.)

Sliver creatures you control have flying.

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

All Slivers are colorless.

{T}: Add three mana of any one color.

Golgari Guildgate enters the battlefield tapped.

{T}: Add {B} or {G}.

Gruul Guildgate enters the battlefield tapped.

{T}: Add {R} or {G}.

Halimar Depths enters tapped.

When Halimar Depths enters, look at the top three cards of your library, then put them back in any order.

{T}: Add {U}.

All Sliver creatures have haste.

All Sliver creatures have trample.

Izzet Guildgate enters the battlefield tapped.

{T}: Add {U} or {R}.

Jungle Hollow enters tapped.

When Jungle Hollow enters, you gain 1 life.

{T}: Add {B} or {G}.

({T}: Add {G}, {U}, or {R}.)

Ketria Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

Sliver creatures you control have first strike.

Sliver creatures you control have "When this creature enters the battlefield, it deals 1 damage to target player or planeswalker and you gain 1 life."

Whenever a Sliver you control attacks, defending player loses 1 life.

Hexproof

Lotus Field enters the battlefield tapped.

When Lotus Field enters the battlefield, sacrifice two lands.

{T}: Add three mana of any one color.

{1}, {T}: Add one mana of any color.

Sliver creatures you control have "{T}: Add one mana of any color."

Sliver creatures you control get +3/+3.

All Slivers have "When this permanent enters the battlefield, 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.)

Whenever a creature you control dies, you gain 1 life and draw a card.

All Sliver creatures get +1/+1.

Mystic Monastery enters tapped.

{T}: Add {U}, {R}, or {W}.

({T}: Add {U}.)

Mystic Sanctuary enters tapped unless you control three or more other Islands.

When Mystic Sanctuary enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

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

+2: Scry 2.

0: Look at the top card of your library. If it's a land card or a creature card with mana value less than or equal to the number of loyalty counters on Nissa, Steward of Elements, you may put that card onto the battlefield.

-6: Untap up to two target lands you control. They become 5/5 Elemental creatures with flying and haste until end of turn. They're still lands.

Nomad Outpost enters tapped.

{T}: Add {R}, {W}, or {B}.

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

Piranha Marsh enters the battlefield tapped.

When Piranha Marsh enters the battlefield, target player loses 1 life.

{T}: Add {B}.

Sliver creatures you control get +1/+1.

All Sliver creatures have flying.

All Slivers have "If this permanent would be put into a graveyard, you may put it on top of its owner's library instead."

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

Rakdos Guildgate enters the battlefield tapped.

{T}: Add {B} or {R}.

Razorverge Thicket enters tapped unless you control two or fewer other lands.

{T}: Add {G} or {W}.

Counter target spell. Untap up to four lands.

Creature spells you control can't be countered.

Nontoken creatures you control have riot. (They enter the battlefield with your choice of a +1/+1 counter or haste.)

This spell can't be countered.

Sliver spells can't be countered.

Rugged Highlands enters the battlefield tapped.

When Rugged Highlands enters the battlefield, you gain 1 life.

{T}: Add {R} or {G}.

({T}: Add {R}, {W}, or {B}.)

Savai Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

Scoured Barrens enters the battlefield tapped.

When Scoured Barrens enters the battlefield, you gain 1 life.

{T}: Add {W} or {B}.

Selesnya Guildgate enters the battlefield tapped.

{T}: Add {G} or {W}.

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

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

Draw a card for each creature you control.

Ferocious -- You gain 4 life for each creature you control with power 4 or greater.

Slivers can't be blocked except by Slivers.

{T}: Add {C}.

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

{5}, {T}: Create a 1/1 colorless Sliver creature token. Activate only if you control a Sliver.

Sliver creatures you control have indestructible. (Damage and effects that say "destroy" don't destroy them.)

All Sliver creatures get +1/+1 for each other Sliver on the battlefield.

{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.)

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

Sliver creatures you control have "Whenever this creature is dealt damage, it deals that much damage to target player or planeswalker."

({T}: Add {R} or {G}.)

As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

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

Sliver creatures you control have lifelink. (Damage dealt by a Sliver creature you control also causes you to gain that much life.)

All Sliver creatures have first strike.

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

Sliver creatures you control have "Whenever this creature deals combat damage to a player, put a +1/+1 counter on it."

Temple of Abandon enters tapped.

When Temple of Abandon enters, scry 1.

{T}: Add {R} or {G}.

Temple of Deceit enters the battlefield tapped.

When Temple of Deceit enters the battlefield, scry 1.

{T}: Add {U} or {B}.

Temple of Enlightenment enters tapped.

When Temple of Enlightenment enters, scry 1.

{T}: Add {W} or {U}.

Temple of Malady enters tapped.

When Temple of Malady enters, scry 1.

{T}: Add {B} or {G}.

Temple of Malice enters the battlefield tapped.

When Temple of Malice enters the battlefield, scry 1.

{T}: Add {B} or {R}.

Temple of Plenty enters tapped.

When Temple of Plenty enters, scry 1.

{T}: Add {G} or {W}.

Temple of Silence enters the battlefield tapped.

When Temple of Silence enters the battlefield, scry 1.

{T}: Add {W} or {B}.

Temple of Triumph enters tapped.

When Temple of Triumph enters, scry 1.

{T}: Add {R} or {W}.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Sliver spells you cast have cascade.

Sliver creatures you control have "Whenever this creature attacks, it deals 1 damage to any target."

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

As Unclaimed Territory enters the battlefield, 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.

{T}: Add {C}.

{1}, {T}: Add one mana of any color.

As Vanquisher's Banner enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

Whenever you cast a creature spell of the chosen type, draw a card.

Sliver creatures you control have deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)

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.)

As Ward Sliver enters, choose a color.

All Slivers have protection from the chosen color.

Wind-Scarred Crag enters the battlefield tapped.

When Wind-Scarred Crag enters the battlefield, you gain 1 life.

{T}: Add {R} or {W}.

When Witchbane Orb enters the battlefield, destroy all Curses attached to you.

You have hexproof. (You can't be the target of spells or abilities your opponents control, including Aura spells.)

({T}: Add {B}, {G}, or {U}.)

Zagoth Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)