Slivers

This land enters tapped.

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

This artifact doesn't untap during your untap step.

{T}: Add {C}{C}{C}.

{3}: Untap this artifact.

All Sliver creatures have trample.

As this artifact enters, choose a creature type.

{3}, {T}: You may put a creature card of the chosen type from your hand onto the battlefield.

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

Sliver creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

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.

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, and that spell can't be countered.

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

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

Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."

This land enters tapped.

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

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

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

Return target nonland permanent you don't control to its owner's hand.

Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

As this artifact enters, choose a creature type.

Whenever you cast a spell of the chosen type, put a charge counter on this artifact.

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

All Sliver creatures have defender.

All Slivers have "When this permanent enters, draw a card."

{T}: Add {C}{C}{C}.

{3}, {T}, Sacrifice this artifact: Draw three cards.

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

({T}: Add {G}.)

This land enters tapped.

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

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.)

All Sliver creatures have double strike.

Sliver creatures you control have flying.

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

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

All Sliver creatures have haste.

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

Create two 1/1 colorless Sliver creature tokens.

All Sliver creatures have trample.

Destroy all creatures you don't control and all planeswalkers you don't control.

({T}: Add {U}.)

This land enters tapped.

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

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

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

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

Sliver creatures you control get +3/+3.

({T}: Add {R}.)

This land enters tapped.

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

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

This land 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."

This land enters tapped.

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

This land 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.)

({T}: Add {W}.)

All Sliver creatures have "{T}: This creature deals 2 damage to any target and 3 damage to itself."

Flash

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

All Sliver creatures have haste.

Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.

This spell can't be countered.

Sliver spells can't be countered.

This land enters tapped.

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

This land enters tapped.

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

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

This land enters tapped.

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

All Sliver creatures have "This creature gets +1/+1 as long as you control a Swamp."

All Slivers have "{B}: Regenerate this permanent." (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

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.)

Slivers can't be blocked except by Slivers.

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.

{T}: Add {C}{C}.

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

All Sliver creatures have first strike.

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

({T}: Add {B}.)

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 attacks, it deals 1 damage to any target."

{T}: Add {C}{C}{C}.

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

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

As this artifact enters, choose a creature type.

Creature spells of the chosen type cost {2} less to cast.

As this artifact enters, 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.)

This land enters tapped with two charge counters on it.

{T}: Add {R}.

{T}, Remove a charge counter from this land: Add one mana of any color.

This land enters tapped with two charge counters on it.

{T}: Add {U}.

{T}, Remove a charge counter from this land: Add one mana of any color.

This land enters tapped with two charge counters on it.

{T}: Add {G}.

{T}, Remove a charge counter from this land: Add one mana of any color.

This land enters tapped with two charge counters on it.

{T}: Add {B}.

{T}, Remove a charge counter from this land: Add one mana of any color.

This land enters tapped with two charge counters on it.

{T}: Add {W}.

{T}, Remove a charge counter from this land: Add one mana of any color.

As this artifact enters, choose a color and a creature type.

{5}, {T}: Create a 2/2 creature token of the chosen color and type.

As this creature enters, choose a color.

All Slivers have protection from the chosen color.

All Sliver creatures have flying.

This artifact enters tapped.

{T}: Add {C}{C}.