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.

As Arcane Adaptation enters the battlefield, choose a creature type. Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Sliver creatures you control get +2/+0.

Sliver creatures you control get +2/+0.

Sliver creatures you control have flying and haste.

At the beginning of your upkeep, you may have Cryptoplasm become a copy of another target creature, except it has this ability.

{T}: Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Creatures you control are Slivers in addition to their other creature types.

Enchant creature When Hydra's Growth enters the battlefield, put a +1/+1 counter on enchanted creature. At the beginning of your upkeep, double the number of +1/+1 counters on enchanted creature.

Flying You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells that you cast.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

Sliver creatures you control get +3/+3.

All Sliver creatures get +1/+1.

Equipped creature can't be blocked except by Walls. Equip {2}

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."

Enchant creature Enchanted creature gets +2/+0 and has trample. When Rancor is put into a graveyard from the battlefield, return Rancor to its owner's hand.

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

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

As Steely Resolve enters the battlefield, choose a creature type. Creatures of the chosen type have shroud. (They can't be the targets of spells or abilities.)

Creatures you control have horsemanship. (They can't be blocked except by creatures with horsemanship.)

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

Equipped creature has nonbasic landwalk. (It can't be blocked as long as defending player controls a nonbasic land.) Equip {2}

Cascade, cascade, cascade, 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. Multiple instances of cascade each trigger separately.)

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.

Enchant creature Whenever enchanted creature deals damage to an opponent, you may draw a card.

Devoid (This card has no color.) Whenever a creature you control deals combat damage to a player, you may draw a card. {3}{C}: Target creature can't be blocked this turn. ({C} represents colorless mana.)

As Herald's Horn enters the battlefield, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

Whenever you draw your second card each turn, put a +1/+1 counter on target creature you control. +1: Draw a card. −7: Creatures you control can't be blocked this turn.

The first spell you cast each turn has cascade. (When you cast your first 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.)

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

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.

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

Concealed Courtyard enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {W} or {B}.

When Crypt of the Eternals enters the battlefield, you gain 1 life. {T}: Add {C}. {1}, {T}: Add {U}, {B}, or {R}.

{1}, {T}: Add {U}{B}.

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

({T}: Add {G}.)

({T}: Add {U}.)

{T}: Choose a color of a permanent you control. Add one mana of that color.

({T}: Add {R}.)

{T}, Pay 1 life: Add {B} or {G}. {1}, {T}, Sacrifice Nurturing Peatland: Draw a card.

Path of Ancestry enters the battlefield 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}.)

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

{T}: Add {C}. {T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.

{T}: Add {C}. {R}{G}, {T}: Target creature gets +1/+1 and gains trample until end of turn.

{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.

{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate only if you control an artifact.

({T}: Add {B}.)

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

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}, Pay 1 life: Add {G} or {U}. {1}, {T}, Sacrifice Waterlogged Grove: Draw a card.

As An-Zerrin Ruins enters the battlefield, choose a creature type. Creatures of the chosen type don't untap during their controllers' untap steps.

Protection from black (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything black.) {2}: Exile target card from a graveyard.

Each enchantment deals 2 damage to its controller, then each Aura attached to a creature deals 2 damage to the creature it's attached to.

Whenever a creature enters the battlefield under your control, you may destroy target artifact or enchantment.

Protection from green (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything green.) Creatures your opponents control can't have +1/+1 counters put on them.

Enchant permanent Enchanted permanent can't attack, block, or crew Vehicles, and its activated abilities can't be activated unless they're mana abilities.

Choose one — • Destroy all creatures. • Destroy all artifacts and enchantments.

Changeling (This card is every creature type.) Exile target creature. Its controller creates a 1/1 colorless Shapeshifter creature token with changeling.

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

Creatures you control get +1/+1. {1}{W}{W}, {T}: Destroy target creature that dealt damage to you this turn.

+1: Until your next turn, whenever a creature deals combat damage to Vraska the Unseen, destroy that creature. −3: Destroy target nonland permanent. −7: Create three 1/1 black Assassin creature tokens with "Whenever this creature deals combat damage to a player, that player loses the game."

+2: You may sacrifice another permanent. If you do, you gain 1 life and draw a card. −3: Destroy target nonland permanent with mana value 3 or less. −9: You get an emblem with "Whenever a creature you control deals combat damage to a player, that player loses the game."

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

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

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

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

{T}: Add {G}.

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

Changeling (This card is every creature type.) As Morophon, the Boundless enters the battlefield, choose a creature type. Spells of the chosen type you cast cost {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay. Other creatures you control of the chosen type get +1/+1.

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

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

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

Enchant land When Urban Utopia enters the battlefield, draw a card. Enchanted land has "{T}: Add one mana of any color."

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