Swamp

Temple of the False God

{T}: Add {C}{C}. Activate only if you control five or more lands.

Sisay's Ingenuity

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

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.)

Karmic Guide

Flying, protection from black
Echo {3}{W}{W} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Karmic Guide enters, return target creature card from your graveyard to the battlefield.

Scrubland

Blind Seer

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

Oath of Lieges

At the beginning of each player's upkeep, that player chooses target player who controls more lands than they do and is their opponent. The first player may search their library for a basic land card, put that card onto the battlefield, then shuffle.

Purify

Catalog

Dromar, the Banisher

Flying
Whenever Dromar, the Banisher 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.

Tarnished Citadel

{T}: Add {C}.
{T}: Add one mana of any color. Tarnished Citadel deals 3 damage to you.

Tundra

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Gush

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.

Oblation

The owner of target nonland permanent shuffles it into their library, then draws two cards.

Ancient Craving

You draw three cards and you lose 3 life.

Harsh Judgment

As Harsh Judgment enters, choose a color.
If an instant or sorcery spell of the chosen color would deal damage to you, it deals that damage to its controller instead.

Wasteland

{T}: Add {C}.
{T}, Sacrifice Wasteland: Destroy target nonbasic land.

Vodalian Mystic

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

Weathered Wayfarer

{W}, {T}: Search your library for a land card, reveal it, put it into your hand, then shuffle. Activate only if an opponent controls more lands than you.

Distorting Lens

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

Skycloud Expanse

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.

Windfall

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Benevolent Bodyguard

Sacrifice Benevolent Bodyguard: Target creature you control gains protection from the color of your choice until end of turn.

Demonic Tutor

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

Stroke of Genius

Homarid Shaman

Possessed Aven

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."

Llawan, Cephalid Empress

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

Breakthrough

Draw four cards, then choose X cards in your hand and discard the rest.

Flooded Strand

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

Dromar's Cavern

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

Deep Analysis

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Marble Diamond

Marble Diamond enters tapped.
{T}: Add {W}.

Retraced Image

Reveal a card in your hand, then put that card onto the battlefield if it has the same name as a permanent.

Island

Underground Sea

Sol Ring

Bad River

Bad River enters tapped.
{T}, Sacrifice Bad River: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Fylamarid

Flying
Fylamarid can't be blocked by blue creatures.
{U}: Target creature becomes blue until end of turn.

Rainbow Crow

Flying
{1}: Rainbow Crow becomes the color of your choice until end of turn.

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Hunting Drake

Flying
When Hunting Drake enters, put target red or green creature on top of its owner's library.

Disenchant

Stormscape Familiar

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

Mind Stone

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

Tidal Visionary

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

Sol Grail

As Sol Grail enters, choose a color.
{T}: Add one mana of the chosen color.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Obsidian Acolyte

Protection from black
{W}: Target creature gains protection from black until end of turn.

Insight

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

King Crab

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

Order of the Sacred Torch

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

Phyrexian Lens

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

Perish

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

Reflecting Pool

{T}: Add one mana of any type that a land you control could produce.

Grand Coliseum

Grand Coliseum enters tapped.
{T}: Add {C}.
{T}: Add one mana of any color. Grand Coliseum deals 1 damage to you.

Aurora Griffin

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

Glory

Flying
{2}{W}: Choose a color. Creatures you control gain protection from the chosen color until end of turn. Activate only if Glory is in your graveyard.

Douse

Justice

At the beginning of your upkeep, sacrifice Justice unless you pay {W}{W}.
Whenever a red creature or spell deals damage, Justice deals that much damage to that creature's or spell's controller.

Crusading Knight

Protection from black
Crusading Knight gets +1/+1 for each Swamp your opponents control.

Possessed Nomad

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."

Flood Plain

Flood Plain enters tapped.
{T}, Sacrifice Flood Plain: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

Relearn

Return target instant or sorcery card from your graveyard to your hand.

Vindicate

Southern Paladin

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

Worn Powerstone

Worn Powerstone enters tapped.
{T}: Add {C}{C}.

Seashell Cameo

Thran Dynamo

Sway of Illusion

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

Omen

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.

Terrain Generator

{T}: Add {C}.
{2}, {T}: You may put a basic land card from your hand onto the battlefield tapped.

Mother of Runes

{T}: Target creature you control gains protection from the color of your choice until end of turn.

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Samite Elder

{T}: Creatures you control gain protection from the colors of target permanent you control until end of 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.")

Polluted Delta

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Tidings

Wash Out

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

Metathran Transport

Flying
Metathran Transport can't be blocked by blue creatures.
{U}: Target creature becomes blue until end of turn.

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.