Impatience

At the beginning of each player's end step, if that player didn't cast a spell this turn, this enchantment deals 2 damage to that player.

Ruby Medallion

Red spells you cast cost {1} less to cast.

Manakin

Lotus Blossom

At the beginning of your upkeep, you may put a petal counter on this artifact.
{T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of petal counters on this artifact.

Shatter

Heart of Ramos

{T}: Add {R}.
Sacrifice this artifact: Add {R}.

Avatar of Fury

If an opponent controls seven or more lands, this spell costs {6} less to cast.
Flying
{R}: This creature gets +1/+0 until end of turn.

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Sol Grail

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

Fissure

Destroy target creature or land. It can't be regenerated.

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Sulfuric Vapors

If a red spell would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.

Maze of Ith

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Crawlspace

No more than two creatures can attack you each combat.

Aether Sting

Whenever an opponent casts a creature spell, this enchantment deals 1 damage to that player.

Red Mana Battery

{2}, {T}: Put a charge counter on this artifact.
{T}, Remove any number of charge counters from this artifact: Add {R}, then add an additional {R} for each charge counter removed this way.

Winds of Change

Each player shuffles the cards from their hand into their library, then draws that many cards.

Seismic Assault

Discard a land card: This enchantment deals 2 damage to any target.

Detonate

Destroy target artifact with mana value X. It can't be regenerated. Detonate deals X damage to that artifact's controller.

Conquer

Wall of Fire

Defender (This creature can't attack.)
{R}: This creature gets +1/+0 until end of turn.

Shivan Dragon

Flying
{R}: This creature gets +1/+0 until end of turn.

Lotus Guardian

Earthbind

Enchant creature
When Earthbind enters, if enchanted creature has flying, Earthbind deals 2 damage to that creature and Earthbind gains "Enchanted creature loses flying."

Blood Moon

Repercussion

Whenever a creature is dealt damage, this enchantment deals that much damage to that creature's controller.

Thran Dynamo

Fork

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Burning Sands

Whenever a creature dies, that creature's controller sacrifices a land of their choice.

Stone Rain

Mana Prism

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

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Latulla, Keldon Overseer

{X}{R}, {T}, Discard two cards: Latulla deals X damage to any target.

Dragon Mage

Flying
Whenever this creature deals combat damage to a player, each player discards their hand, then draws seven cards.

Lotus Petal

{T}, Sacrifice this artifact: Add one mana of any color.

Tormod's Crypt

{T}, Sacrifice this artifact: Exile target player's graveyard.

Dwarven Hold

This land enters tapped.
You may choose not to untap this land during your untap step.
At the beginning of your upkeep, if this land is tapped, put a storage counter on it.
{T}, Remove any number of storage counters from this land: Add {R} for each storage counter removed this way.

Mana Matrix

Instant and enchantment spells you cast cost {2} less to cast.

Basalt Monolith

This artifact doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap this artifact.

Rack and Ruin

Red Elemental Blast

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

Active Volcano

Choose one —
• Destroy target blue permanent.
• Return target Island to its owner's hand.

Sol Ring

Mana Clash

You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both players' coins come up heads on the same flip.

Rock Hydra

This creature enters with X +1/+1 counters on it.
For each 1 damage that would be dealt to this creature, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage.
{R}: Prevent the next 1 damage that would be dealt to this creature this turn.
{R}{R}{R}: Put a +1/+1 counter on this creature. Activate only during your upkeep.

Omen of Fire

Return all Islands to their owners' hands. Each player sacrifices a Plains or a white permanent of their choice for each white permanent they control.

Spitting Earth

Spitting Earth deals damage to target creature equal to the number of Mountains you control.

Memory Jar

{T}, Sacrifice this artifact: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

Mana Vault

This artifact doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact.
At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you.
{T}: Add {C}{C}{C}.

Pyroblast

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

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Kyren Toy

{1}, {T}: Put a charge counter on this artifact.
{T}, Remove X charge counters from this artifact: Add an amount of {C} equal to X plus one.

Fire Diamond

Fire Diamond enters tapped.
{T}: Add {R}.

Orcish Squatters

Whenever this creature attacks and isn't blocked, you may gain control of target land defending player controls for as long as you control this creature. If you do, this creature assigns no combat damage this turn.

Wildfire

Each player sacrifices four lands of their choice. Wildfire deals 4 damage to each creature.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Sisters of the Flame

Scroll Rack

{1}, {T}: Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.

Planar Chaos

At the beginning of your upkeep, flip a coin. If you lose the flip, sacrifice this enchantment.
Whenever a player casts a spell, that player flips a coin. If they lose the flip, counter that spell.

Fervor

Creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Gamble

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

Custody Battle

Enchant creature
Enchanted creature has "At the beginning of your upkeep, target opponent gains control of this creature unless you sacrifice a land."

Sisay's Ring

Scrap

Destroy target artifact.
Cycling {2} ({2}, Discard this card: Draw a card.)

Wall of Stone

Wall of Dust

Defender (This creature can't attack.)
Whenever this creature blocks a creature, that creature can't attack during its controller's next turn.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Inferno

Inferno deals 6 damage to each creature and each player.

Smoke

Players can't untap more than one creature during their untap steps.

Antagonism

At the beginning of each player's end step, this enchantment deals 2 damage to that player unless one of their opponents was dealt damage this turn.

Mountain

Smoldering Crater

This land enters tapped.
{T}: Add {R}.
Cycling {2} ({2}, Discard this card: Draw a card.)

Keldon Champion

Haste
Echo {2}{R}{R} (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 this creature enters, it deals 3 damage to target player or planeswalker.

Price of Glory

Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.

Pyrotechnics

Pyrotechnics deals 4 damage divided as you choose among any number of targets.

Hammerheim

{T}: Add {R}.
{T}: Target creature loses all landwalk abilities until end of turn.

Overmaster

The next instant or sorcery spell you cast this turn can't be countered.
Draw a card.