Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Arcane Sanctum enters the battlefield tapped.

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

{2}, {T}, Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

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

{W}{U}, {T}, Sacrifice Azorius Cluestone: Draw a card.

Azorius Guildgate enters the battlefield tapped.

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

{1}{U}: Target spell or permanent becomes the color of your choice until end of turn.

Lifelink, protection from white and from black

As long as you have 30 or more life and an opponent has 10 or less life, Blood Baron of Vizkopa gets +6/+6 and has flying.

Flying

When Cloudchaser Kestrel enters the battlefield, destroy target enchantment.

{W}: Target permanent becomes white until end of turn.

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

Change the text of target spell or permanent by replacing all instances of one color word with another or one basic land type with another until end of turn.

Draw a card.

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Search your library for a card, put that card into your hand, then shuffle.

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

{U}{B}, {T}, Sacrifice Dimir Cluestone: Draw a card.

Dismal Backwater enters the battlefield tapped.

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

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

{T}: Target permanent becomes the color of your choice until end of turn.

{B}{B}, {T}: Destroy target green creature.

{1}{W}: Target permanent you control gains protection from white until end of turn.

{1}: Target spell or permanent becomes white until end of turn.

{T}: Add {C}.

{1}, {T}, Sacrifice Esper Panorama: Search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle.

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

{1}{W}, {T}: Destroy target black creature.

Green creatures can't attack unless their controller sacrifices a land for each green creature they control that's attacking. (This cost is paid as attackers are declared.)

Change the text of target spell or permanent by replacing all instances of one color word with another.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Gain control of target monocolored creature.

Forecast -- {1}{U}, Reveal Govern the Guildless from your hand: Target creature becomes the color or colors of your choice until end of turn. (Activate only during your upkeep and only once each turn.)

Return all green permanents to their owners' hands.

Whenever an opponent casts a green spell, you draw a card.

Return all nonblue creatures to their owners' hands.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Whenever Jareth, Leonine Titan blocks, it gets +7/+7 until end of turn.

{W}: Jareth gains protection from the color of your choice until end of turn.

Jwar Isle Refuge enters the battlefield tapped.

When Jwar Isle Refuge enters the battlefield, you gain 1 life.

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

At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps they control.

{1}{U}, {T}: Put target green creature on top of its owner's library.

Black creatures can't attack or block.

First strike (This creature deals combat damage before creatures without first strike.)

Whenever Lightwielder Paladin deals combat damage to a player, you may exile target black or red permanent that player controls.

+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.

-3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.

-6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}.'"

When Llawan, Cephalid Empress enters the battlefield, return all blue creatures your opponents control to their owners' hands.

Your opponents can't cast blue creature spells.

Flying

{3}{W}{W}, Sacrifice Major Teroh: Exile all black creatures.

Destroy all nonwhite creatures.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

At the beginning of your upkeep, put a -1/-1 counter on each nonblack creature.

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

Destroy target creature or enchantment.

{T}, Pay 1 life: Counter target black spell.

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

{W}{B}, {T}, Sacrifice Orzhov Cluestone: Draw a card.

Orzhov Guildgate enters the battlefield tapped.

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

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Flying

Threshold -- As long as seven or more cards are in your graveyard, Possessed Aven gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target blue creature."

Vigilance

Threshold -- As long as seven or more cards are in your graveyard, Possessed Nomad gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target white creature."

Whenever a player casts a green or white spell, that player discards a card.

Black creatures can't block.

Destroy two target nonblack creatures. You lose 5 life.

Flying

Whenever a creature dealt damage by Repentant Vampire this turn dies, put a +1/+1 counter on Repentant Vampire.

Threshold -- As long as seven or more cards are in your graveyard, Repentant Vampire is white and has "{T}: Destroy target black creature."

Rupture Spire enters the battlefield tapped.

When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Destroy target nonwhite permanent.

Scoured Barrens enters the battlefield tapped.

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

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

{T}: Add one mana of any color.

{T}: Target creature becomes the color or colors of your choice until end of turn.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Whenever Shadowmage Infiltrator deals combat damage to a player, you may draw a card.

As Shifting Sky enters the battlefield, choose a color.

All nonland permanents are the chosen color.

Enchant creature

When Sisay's Ingenuity enters the battlefield, draw a card.

Enchanted creature has "{2}{U}: Target creature becomes the color of your choice until end of turn."

Buyback--Pay 4 life. (You may pay 4 life in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)

Destroy target nonblack creature. It can't be regenerated.

Flying

{5}{U}{U}: Draw a card for each color among permanents you control.

{5}{U}{U}, Exile Soul of Ravnica from your graveyard: Draw a card for each color among permanents you control.

{W}{W}, {T}: Destroy target red permanent.

Flying, first strike, vigilance, lifelink, protection from red and from green

Whenever a creature enters the battlefield, destroy all other creatures that share a color with it. They can't be regenerated.

Flying

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

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Any number of target creatures become the color of your choice until end of turn.

Draw a card.

As Swirl the Mists enters the battlefield, choose a color word.

All instances of color words in the text of spells and permanents are changed to the chosen color word.

As Teferi's Moat enters the battlefield, choose a color.

Creatures of the chosen color without flying can't attack you.

{T}: Add {C}.

{2}, {T}, Sacrifice Terminal Moraine: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

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

{T}: Target creature becomes the color of your choice until end of turn.

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

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

Transguild Promenade enters the battlefield tapped.

When Transguild Promenade enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Each land is a Swamp in addition to its other land types.

Exile target nonland permanent.

Destroy all white creatures.

Return all permanents of the color of your choice to their owners' hands.

Buyback {2} (You may pay an additional {2} as you cast this spell. If you do, put this card into your hand as it resolves.)

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another until end of turn. (For example, you may change "nonred creature" to "nongreen creature" or "plainswalk" to "swampwalk.")

When Wrath of Marit Lage enters the battlefield, tap all red creatures.

Red creatures don't untap during their controllers' untap steps.