Douse

Swamp

Nature's Ruin

Flash Flood

Choose one —
• Destroy target red permanent.
• Return target Mountain to its owner's hand.

Stromgald Cabal

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

Perish

Destroy all green creatures. They can't be regenerated.

Dromar's Charm

Choose one —
• You gain 5 life.
• Counter target spell.
• Target creature gets -2/-2 until end of turn.

Pentarch Paladin

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)
As this creature enters, choose a color.
{W}{W}, {T}: Destroy target permanent of the chosen color.

Bojuka Bog

This land enters tapped.
When this land enters, exile target player's graveyard.
{T}: Add {B}.

Exotic Orchard

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

Hibernation

Return all green permanents to their owners' hands.

Leshrac's Sigil

Whenever an opponent casts a green spell, you may pay {B}{B}. If you do, look at that player's hand and choose a card from it. The player discards that card.
{B}{B}: Return this enchantment to its owner's hand.

Western Paladin

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

Wash Out

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

Mind Bend

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.)

Stormscape Familiar

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

Teferi's Moat

As this enchantment enters, choose a color.
Creatures of the chosen color without flying can't attack you.

Tidal Visionary

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

Circle of Protection: Black

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

Fellwar Stone

Plains

Tsabo's Assassin

{T}: Destroy target creature if it shares a color with the most common color among all permanents or a color tied for most common. A creature destroyed this way can't be regenerated.

Alter Reality

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.)

Eight-and-a-Half-Tails

{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.

Insight

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

Noxious Grasp

Destroy target creature or planeswalker that's green or white. You gain 1 life.

Vodalian Mystic

{T}: Target instant or sorcery spell becomes the color of your choice.

Armored Guardian

{1}{W}{W}: Target creature you control gains protection from the color of your choice until end of turn.
{1}{U}{U}: This creature gains shroud until end of turn. (It can't be the target of spells or abilities.)

Eastern Paladin

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

Azorius Signet

Glamerdye

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.)

Righteous War

White creatures you control have protection from black.
Black creatures you control have protection from white.

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Distorting Lens

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

Dromar, the Banisher

Flying
Whenever Dromar deals combat damage to a player, you may pay {2}{U}. If you do, choose a color, then return all creatures of that color to their owners' hands.

Blind Seer

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

Circle of Protection: Green

{1}: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

Quickchange

Target creature becomes the color or colors of your choice until end of turn.
Draw a card.

Have

Reflector Mage

When this creature enters, return target creature an opponent controls to its owner's hand. That creature's owner can't cast spells with the same name as that creature until your next turn.

Whim of Volrath

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.")

Darkest Hour

Scuttlemutt

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

Arcane Signet

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

Island

Warped Devotion

Whenever a permanent is returned to a player's hand, that player discards a card.

Flooded Woodlands

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

Sleight of Mind

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Dream Coat

Enchant creature
{0}: Enchanted creature becomes the color or colors of your choice. Activate only once each turn.

Deathgrip

Sway of Illusion

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

Jaded Response

Counter target spell if it shares a color with a creature you control.

Sisay's Ingenuity

Enchant creature
When this Aura enters, draw a card.
Enchanted creature has "{2}{U}: Target creature becomes the color of your choice until end of turn."

Dromar's Cavern

When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {W}, {U}, or {B}.

Nightcreep

Until end of turn, all creatures become black and all lands become Swamps.

Southern Paladin

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

Shifting Sky

As this enchantment enters, choose a color.
All nonland permanents are the chosen color.

Breath of Dreams

Cumulative upkeep {U} (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.)
Green creatures have "Cumulative upkeep {1}."

Order of the Sacred Torch

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

Mystic Decree

All creatures lose flying and islandwalk.

Northern Paladin

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

Command Tower

Virtue's Ruin

Cloud Cover

Whenever another permanent you control becomes the target of a spell or ability an opponent controls, you may return that permanent to its owner's hand.

Llawan, Cephalid Empress

When Llawan enters, return all blue creatures your opponents control to their owners' hands.
Your opponents can't cast blue creature spells.

Doomsday Specter

Flying
When this creature enters, return a blue or black creature you control to its owner's hand.
Whenever this creature deals combat damage to a player, look at that player's hand and choose a card from it. The player discards that card.

Prismatic Lace

Target permanent becomes the color or colors of your choice. (This effect lasts indefinitely.)