Thassa, Deep-Dwelling

Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature.
At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control.
{3}{U}: Tap another target creature.

Hurkyl's Recall

Return all artifacts target player owns to their hand.

Master of Waves

Protection from red
Elemental creatures you control get +1/+1.
When this creature enters, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Fiendslayer Paladin

First strike (This creature deals combat damage before creatures without first strike.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
This creature can't be the target of black or red spells your opponents control.

Lightwielder Paladin

First strike (This creature deals combat damage before creatures without first strike.)
Whenever this creature deals combat damage to a player, you may exile target black or red permanent that player controls.

Royal Decree

Cumulative upkeep {W} (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 a Swamp, Mountain, black permanent, or red permanent becomes tapped, this enchantment deals 1 damage to that permanent's controller.

Conjurer's Closet

At the beginning of your end step, you may exile target creature you control, then return that card to the battlefield under your control.

Harsh Judgment

As this enchantment 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.

Flash Flood

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

Chill

Hydroblast

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

Flashfreeze

Story Circle

As this enchantment enters, choose a color.
{W}: The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.

Hazerider Drake

Opal Guardian

When an opponent casts a creature spell, if this permanent is an enchantment, this enchantment becomes a 3/4 Gargoyle creature with flying and protection from red.

Chameleon Spirit

As this creature enters, choose a color.
Chameleon Spirit's power and toughness are each equal to the number of permanents of the chosen color your opponents control.

Crimson Acolyte

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

Suq'Ata Firewalker

This creature can't be the target of red spells or abilities from red sources.
{T}: This creature deals 1 damage to any target.

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.

Teferi's Moat

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

Freewind Falcon

Sword of Sinew and Steel

Equipped creature gets +2/+2 and has protection from black and from red.
Whenever equipped creature deals combat damage to a player, destroy up to one target planeswalker and up to one target artifact.
Equip {2}

Arcane Signet

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

Akroma, Angel of Wrath

Flying, first strike, vigilance, trample, haste, protection from black and from red

Pilgrim of Justice

Protection from red
{W}, Sacrifice this creature: The next time a red source of your choice would deal damage this turn, prevent that damage.

Kor Firewalker

Protection from red
Whenever a player casts a red spell, you may gain 1 life.

Rebuild

Return all artifacts to their owners' hands.
Cycling {2} ({2}, Discard this card: Draw a card.)

Azorius Signet

Sanctifier en-Vec

Protection from black and from red
When this creature enters, exile all cards that are black or red from all graveyards.
If a black or red permanent, spell, or card not on the battlefield would be put into a graveyard, exile it instead.

Disciple of Law

Protection from red
Cycling {2} ({2}, Discard this card: Draw a card.)

Oraxid

Lavinia, Azorius Renegade

Each opponent can't cast noncreature spells with mana value greater than the number of lands that player controls.
Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.

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.)

Red Ward

Enchant creature
Enchanted creature has protection from red. This effect doesn't remove this Aura.

Lavinia of the Tenth

Protection from red
When Lavinia enters, detain each nonland permanent your opponents control with mana value 4 or less. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)

Jodah's Avenger

{0}: Until end of turn, this creature gets -1/-1 and gains your choice of double strike, protection from red, vigilance, or shadow. (A creature with shadow can block or be blocked by only creatures with shadow.)

Knights of Thorn

Protection from red; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Baleful Stare

Target opponent reveals their hand. You draw a card for each Mountain and red card in it.

Renewing Dawn

You gain 2 life for each Mountain target opponent controls.

Soltari Priest

Protection from red
Shadow (This creature can block or be blocked by only creatures with shadow.)

Talisman of Progress

{T}: Add {C}.
{T}: Add {W} or {U}. This artifact deals 1 damage to you.

Galina's Knight

Sea Sprite

Conversion

At the beginning of your upkeep, sacrifice this enchantment unless you pay {W}{W}.
All Mountains are Plains.

Tidal Control

Cumulative upkeep {2} (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.)
Pay 2 life or {2}: Counter target red or green spell. Any player may activate this ability.

Tivadar of Thorn

First strike, protection from red
When Tivadar enters, destroy target Goblin.

Douse

Vedalken Outlander

Mind Harness

Enchant red or green creature
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.)
You control enchanted creature.

Celestial Purge

Austere Command

Choose two —
• Destroy all artifacts.
• Destroy all enchantments.
• Destroy all creatures with mana value 3 or less.
• Destroy all creatures with mana value 4 or greater.

Defender of Law

Weatherseed Faeries

Tidebinder Mage

When this creature enters, tap target red or green creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature.

Voice of Law

Red Scarab

Enchant creature
Enchanted creature can't be blocked by red creatures.
Enchanted creature gets +2/+2 as long as an opponent controls a red permanent.

Sol Ring

Warmth

Whenever an opponent casts a red spell, you gain 2 life.

Circle of Protection: Red

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

Aether Gust

Choose target spell or permanent that's red or green. Its owner puts it on their choice of the top or bottom of their library.

Mangara's Equity

As this enchantment enters, choose black or red.
At the beginning of your upkeep, sacrifice this enchantment unless you pay {1}{W}.
Whenever a creature of the chosen color deals damage to you or a white creature you control, this enchantment deals that much damage to that creature.

Psychic Allergy

As this enchantment enters, choose a color.
At the beginning of each opponent's upkeep, this enchantment deals X damage to that player, where X is the number of nontoken permanents of the chosen color they control.
At the beginning of your upkeep, destroy this enchantment unless you sacrifice two Islands.

Essence Leak

Enchant permanent
As long as enchanted permanent is red or green, it has "At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost."

Volcanic Eruption

Destroy X target Mountains. Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard this way.

Ivory Guardians

Protection from red
Creatures named Ivory Guardians get +1/+1 as long as an opponent controls a nontoken red permanent.

Cerulean Drake

Flying
Protection from red (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything red.)
Sacrifice this creature: Counter target spell that targets you.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Absolute Law

Narwhal

Sword of War and Peace

Equipped creature gets +2/+2 and has protection from red and from white.
Whenever equipped creature deals combat damage to a player, this Equipment deals damage to that player equal to the number of cards in their hand and you gain 1 life for each card in your hand.
Equip {2}

Thermal Glider

Silver Knight

Burrenton Forge-Tender

Protection from red
Sacrifice this creature: Prevent all damage a red source of your choice would deal this turn.

Teleportation Circle

At the beginning of your end step, exile up to one target artifact or creature you control, then return that card to the battlefield under its owner's control.

Abbey Gargoyles

Glaciers

At the beginning of your upkeep, sacrifice this enchantment unless you pay {W}{U}.
All Mountains are Plains.

Southern Paladin

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

Dragon's Claw

Whenever a player casts a red spell, you may gain 1 life.

Sword of the Animist

Equipped creature gets +1/+1.
Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Equip {2}

Aven Smokeweaver

Sword of Fire and Ice

Equipped creature gets +2/+2 and has protection from red and from blue.
Whenever equipped creature deals combat damage to a player, this Equipment deals 2 damage to any target and you draw a card.
Equip {2}