Creatures you control have flying, first strike, vigilance, trample, haste, and protection from black and from red.
{6}{R}{R}
Alpha Brawl
Sorcery
Target creature an opponent controls deals damage equal to its power to each other creature that player controls, then each of those creatures deals damage equal to its power to that creature.
--
Ancient Tomb
Land
{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.
{1}{R}{R}
Anger of the Gods
Sorcery
Anger of the Gods deals 3 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.
{1}{R}{R}
Archetype of Aggression
Enchantment Creature - Human Warrior
Creatures you control have trample.
Creatures your opponents control lose trample and can't have or gain trample.
3 /
2
{3}{R}{R}
Berserkers' Onslaught
Enchantment
Attacking creatures you control have double strike.
{8}{R}
Blasphemous Act
Sorcery
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.
{2}{R}
Blood Moon
Enchantment
Nonbasic lands are Mountains.
{3}{R}
Boil
Instant
Destroy all Islands.
{3}{R}
Boiling Seas
Sorcery
Destroy all Islands.
--
Boseiju, Who Shelters All
Legendary Land
Boseiju, Who Shelters All enters the battlefield tapped.
{T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell can't be countered.
{4}{R}{R}
Chandra, Bold Pyromancer
Legendary Planeswalker - Chandra
+1: Add {R}{R}. Chandra, Bold Pyromancer deals 2 damage to target player.
-3: Chandra, Bold Pyromancer deals 3 damage to target creature or planeswalker.
-7: Chandra, Bold Pyromancer deals 10 damage to target player and each creature and planeswalker they control.
L:
5
{9}
Darksteel Forge
Artifact
Artifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroyed by damage.)
{8}{R}{R}
Decree of Annihilation
Sorcery
Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands.
Cycling {5}{R}{R} ({5}{R}{R}, Discard this card: Draw a card.)
When you cycle Decree of Annihilation, destroy all lands.
{3}{R}{R}
Demanding Dragon
Creature - Dragon
Flying
When Demanding Dragon enters the battlefield, it deals 5 damage to target opponent unless that player sacrifices a creature.
5 /
5
{5}{R}{R}
Disaster Radius
Sorcery
As an additional cost to cast this spell, reveal a creature card from your hand.
Disaster Radius deals X damage to each creature your opponents control, where X is the revealed card's mana value.
--
Dormant Volcano
Land
Dormant Volcano enters the battlefield tapped.
When Dormant Volcano enters the battlefield, sacrifice it unless you return an untapped Mountain you control to its owner's hand.
{T}: Add {C}{R}.
{2}
Dragon's Claw
Artifact
Whenever a player casts a red spell, you may gain 1 life.
{1}{R}
Dragonlord's Servant
Creature - Goblin Shaman
Dragon spells you cast cost {1} less to cast.
1 /
3
{R}{R}
Eidolon of the Great Revel
Enchantment Creature - Spirit
Whenever a player casts a spell with mana value 3 or less, Eidolon of the Great Revel deals 2 damage to that player.
2 /
2
{4}{R}{R}
Etali, Primal Storm
Legendary Creature - Elder Dinosaur
Whenever Etali, Primal Storm attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.
6 /
6
{1}{R}{R}
Feldon of the Third Path
Legendary Creature - Human Artificer
{2}{R}, {T}: Create a token that's a copy of target creature card in your graveyard, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.
2 /
3
--
Field of Ruin
Land
{T}: Add {C}.
{2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.
--
Flamekin Village
Land
As Flamekin Village enters the battlefield, you may reveal an Elemental card from your hand. If you don't, Flamekin Village enters the battlefield tapped.
{T}: Add {R}.
{R}, {T}: Target creature gains haste until end of turn.
{3}{R}
Flashfires
Sorcery
Destroy all Plains.
{R}
Gamble
Sorcery
Search your library for a card, put that card into your hand, discard a card at random, then shuffle.
{3}
Hazoret's Monument
Legendary Artifact
Red creature spells you cast cost {1} less to cast.
Whenever you cast a creature spell, you may discard a card. If you do, draw a card.
{3}{R}{R}
Heartless Hidetsugu
Legendary Creature - Ogre Shaman
{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.
4 /
3
{4}{R}{R}
Hellkite Charger
Creature - Dragon
Flying, haste
Whenever Hellkite Charger attacks, you may pay {5}{R}{R}. If you do, untap all attacking creatures and after this phase, there is an additional combat phase.
5 /
5
{4}{R}{R}
Hellkite Tyrant
Creature - Dragon
Flying, trample
Whenever Hellkite Tyrant deals combat damage to a player, gain control of all artifacts that player controls.
At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.
6 /
5
{3}{R}{R}
Jiwari, the Earth Aflame
Legendary Creature - Spirit
{X}{R}, {T}: Jiwari, the Earth Aflame deals X damage to target creature without flying.
Channel -- {X}{R}{R}{R}, Discard Jiwari: Jiwari deals X damage to each creature without flying.
3 /
3
--
Keldon Megaliths
Land
Keldon Megaliths enters the battlefield tapped.
{T}: Add {R}.
Hellbent -- {1}{R}, {T}: Keldon Megaliths deals 1 damage to any target. Activate only if you have no cards in hand.
--
Labyrinth of Skophos
Land
{T}: Add {C}.
{4}, {T}: Remove target attacking or blocking creature from combat.
{4}{R}{R}
Lathliss, Dragon Queen
Legendary Creature - Dragon
Flying
Whenever another nontoken Dragon enters the battlefield under your control, create a 5/5 red Dragon creature token with flying.
{1}{R}: Dragons you control get +1/+0 until end of turn.
6 /
6
--
Madblind Mountain
Land - Mountain
({T}: Add {R}.)
Madblind Mountain enters the battlefield tapped.
{R}, {T}: Shuffle your library. Activate only if you control two or more red permanents.
{5}{R}{R}{R}
Magmatic Force
Creature - Elemental
At the beginning of each upkeep, Magmatic Force deals 3 damage to any target.
7 /
7
{3}{R}{R}
Malignus
Creature - Elemental Spirit
Malignus's power and toughness are each equal to half the highest life total among your opponents, rounded up.
Damage that would be dealt by Malignus can't be prevented.
* /
*
{3}{R}{R}
Mass Mutiny
Sorcery
For each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn.
--
Maze of Ith
Land
{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.
{4}{R}{R}
Mob Rule
Sorcery
Choose one --
• Gain control of all creatures with power 4 or greater until end of turn. Untap those creatures. They gain haste until end of turn.
• Gain control of all creatures with power 3 or less until end of turn. Untap those creatures. They gain haste until end of turn.
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
{6}
Mycosynth Lattice
Artifact
All permanents are artifacts in addition to their other types.
All cards that aren't on the battlefield, spells, and permanents are colorless.
Players may spend mana as though it were mana of any color.
{7}{R}{R}{R}
Myojin of Infinite Rage
Legendary Creature - Spirit
Myojin of Infinite Rage enters the battlefield with a divinity counter on it if you cast it from your hand.
Myojin of Infinite Rage has indestructible as long as it has a divinity counter on it.
Remove a divinity counter from Myojin of Infinite Rage: Destroy all lands.
7 /
4
{3}{R}{R}
Nesting Dragon
Creature - Dragon
Flying
Landfall -- Whenever a land enters the battlefield under your control, create a 0/2 red Dragon Egg creature token with defender and "When this creature dies, create a 2/2 red Dragon creature token with flying and '{R}: This creature gets +1/+0 until end of turn.'"
5 /
4
{7}
Not of This World
Tribal Instant - Eldrazi
Counter target spell or ability that targets a permanent you control.
This spell costs {7} less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater.
--
Nykthos, Shrine to Nyx
Legendary Land
{T}: Add {C}.
{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)
{4}
Nyx Lotus
Legendary Artifact
Nyx Lotus enters the battlefield tapped.
{T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)
{6}
Planar Portal
Artifact
{6}, {T}: Search your library for a card, put that card into your hand, then shuffle.
{8}
Platinum Emperion
Artifact Creature - Golem
Your life total can't change. (You can't gain or lose life. You can't pay any amount of life except 0.)
8 /
8
{3}{R}
Purphoros, God of the Forge
Legendary Enchantment Creature - God
Indestructible
As long as your devotion to red is less than five, Purphoros isn't a creature.
Whenever another creature enters the battlefield under your control, Purphoros deals 2 damage to each opponent.
{2}{R}: Creatures you control get +1/+0 until end of turn.
6 /
5
{R}
Pyroblast
Instant
Choose one --
• Counter target spell if it's blue.
• Destroy target permanent if it's blue.
{5}
Pyromancer's Goggles
Legendary Artifact
{T}: Add {R}. When that mana is spent to cast a red instant or sorcery spell, copy that spell and you may choose new targets for the copy.
{R}
Red Elemental Blast
Instant
Choose one --
• Counter target blue spell.
• Destroy target blue permanent.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
{5}{R}
Ryusei, the Falling Star
Legendary Creature - Dragon Spirit
Flying
When Ryusei, the Falling Star dies, it deals 5 damage to each creature without flying.
5 /
5
{3}{R}
Sarkhan's Unsealing
Enchantment
Whenever you cast a creature spell with power 4, 5, or 6, Sarkhan's Unsealing deals 4 damage to any target.
Whenever you cast a creature spell with power 7 or greater, Sarkhan's Unsealing deals 4 damage to each opponent and each creature and planeswalker they control.
{4}{R}{R}
Sarkhan, Dragonsoul
Legendary Planeswalker - Sarkhan
+2: Sarkhan, Dragonsoul deals 1 damage to each opponent and each creature your opponents control.
-3: Sarkhan, Dragonsoul deals 4 damage to target player or planeswalker.
-9: Search your library for any number of Dragon creature cards, put them onto the battlefield, then shuffle.
L:
5
--
Shinka, the Bloodsoaked Keep
Legendary Land
{T}: Add {R}.
{R}, {T}: Target legendary creature gains first strike until end of turn.
{5}{R}{R}
Silverclad Ferocidons
Creature - Dinosaur
Enrage -- Whenever Silverclad Ferocidons is dealt damage, each opponent sacrifices a permanent.
8 /
5
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{5}{R}{R}
Spawn of Thraxes
Creature - Dragon
Flying
When Spawn of Thraxes enters the battlefield, it deals damage to any target equal to the number of Mountains you control.
5 /
5
{6}
Staff of Nin
Artifact
At the beginning of your upkeep, draw a card.
{T}: Staff of Nin deals 1 damage to any target.
{3}
Staff of the Flame Magus
Artifact
Whenever you cast a red spell or a Mountain enters the battlefield under your control, you gain 1 life.
{5}{R}{R}
Star of Extinction
Sorcery
Destroy target land. Star of Extinction deals 20 damage to each creature and each planeswalker.
{4}{R}
Stolen Strategy
Enchantment
At the beginning of your upkeep, exile the top card of each opponent's library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells.
{2}{R}{R}
Storm's Wrath
Sorcery
Storm's Wrath deals 4 damage to each creature and each planeswalker.
{3}{R}{R}
Stormbreath Dragon
Creature - Dragon
Flying, haste, protection from white
{5}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Stormbreath Dragon becomes monstrous, it deals damage to each opponent equal to the number of cards in that player's hand.
4 /
4
--
Strip Mine
Land
{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.
{5}{R}{R}
Terror of Mount Velus
Creature - Dragon
Flying, double strike
When Terror of Mount Velus enters the battlefield, creatures you control gain double strike until end of turn.
5 /
5
{5}{R}{R}
Thunder Dragon
Creature - Dragon
Flying
When Thunder Dragon enters the battlefield, it deals 3 damage to each creature without flying.
5 /
5
{5}{R}{R}
Tyrant's Familiar
Creature - Dragon
Flying, haste
Lieutenant -- As long as you control your commander, Tyrant's Familiar gets +2/+2 and has "Whenever Tyrant's Familiar attacks, it deals 7 damage to target creature defending player controls."
5 /
5
{3}{R}{R}
Urabrask the Hidden
Legendary Creature - Phyrexian Praetor
Creatures you control have haste.
Creatures your opponents control enter the battlefield tapped.
4 /
4
{6}{R}{R}
Utvara Hellkite
Creature - Dragon
Flying
Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying.
6 /
6
--
Valakut, the Molten Pinnacle
Land
Valakut, the Molten Pinnacle enters the battlefield tapped.
Whenever a Mountain enters the battlefield under your control, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to any target.
{T}: Add {R}.
{5}
Venser's Journal
Artifact
You have no maximum hand size.
At the beginning of your upkeep, you gain 1 life for each card in your hand.
{2}{R}{R}
Verix Bladewing
Legendary Creature - Dragon
Kicker {3} (You may pay an additional {3} as you cast this spell.)
Flying
When Verix Bladewing enters the battlefield, if it was kicked, create Karox Bladewing, a legendary 4/4 red Dragon creature token with flying.
4 /
4
{3}{R}
War's Toll
Enchantment
Whenever an opponent taps a land for mana, tap all lands that player controls.
If a creature an opponent controls attacks, all creatures that opponent controls attack if able.
{5}{R}
Warstorm Surge
Enchantment
Whenever a creature enters the battlefield under your control, it deals damage equal to its power to any target.
Whenever a creature with power 5 or greater enters the battlefield under your control, you may have Where Ancients Tread deal 5 damage to any target.
{X}{R}
Burn from Within
Sorcery
Burn from Within deals X damage to any target. If a creature is dealt damage this way, it loses indestructible until end of turn. If that creature would die this turn, exile it instead.
{4}{R}
Burning Anger
Enchantment - Aura
Enchant creature
Enchanted creature has "{T}: This creature deals damage equal to its power to any target."
{3}{R}
Burning Earth
Enchantment
Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.
{2}{R}{R}
Cerebral Eruption
Sorcery
Target opponent reveals the top card of their library. Cerebral Eruption deals damage equal to the revealed card's mana value to that player and each creature that player controls. If a land card is revealed this way, return Cerebral Eruption to its owner's hand.
{3}{R}
Crucible of Fire
Enchantment
Dragon creatures you control get +3/+3.
{3}{R}{R}
Curse of Marit Lage
Enchantment
When Curse of Marit Lage enters the battlefield, tap all Islands.
Islands don't untap during their controllers' untap steps.
{8}{R}
Dragonstorm
Sorcery
Search your library for a Dragon permanent card, put it onto the battlefield, then shuffle.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)
{2}{R}
Electropotence
Enchantment
Whenever a creature enters the battlefield under your control, you may pay {2}{R}. If you do, that creature deals damage equal to its power to any target.
{3}{R}{R}{R}{R}
Flame Wave
Sorcery
Flame Wave deals 4 damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.
{X}{R}{R}
Jaya's Immolating Inferno
Legendary Sorcery
(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Jaya's Immolating Inferno deals X damage to each of up to three targets.
{5}
Pyromancer's Gauntlet
Artifact
If a red instant or sorcery spell you control or a red planeswalker you control would deal damage to a permanent or player, it deals that much damage plus 2 to that permanent or player instead.
{2}
Ruby Medallion
Artifact
Red spells you cast cost {1} less to cast.
{1}{R}{R}
Squee, the Immortal
Legendary Creature - Goblin
You may cast Squee, the Immortal from your graveyard or from exile.
2 /
1
{2}
Strionic Resonator
Artifact
{2}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words "when," "whenever," or "at.")
{4}{R}{R}{R}
Tyrant of Discord
Creature - Elemental
When Tyrant of Discord enters the battlefield, target opponent chooses a permanent they control at random and sacrifices it. If a nonland permanent is sacrificed this way, repeat this process.