As long as Anger is in your graveyard and you control a Mountain, creatures you control have haste.
2 /
2
{5}{R}{R}
Angrath's Marauders
Creature - Human Pirate
If a source you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.
4 /
4
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{3}
Ashnod's Altar
Artifact
Sacrifice a creature: Add {C}{C}.
{1}
Bag of Holding
Artifact
Whenever you discard a card, exile that card from your graveyard.
{2}, {T}: Draw a card, then discard a card.
{4}, {T}, Sacrifice Bag of Holding: Return all cards exiled with Bag of Holding to their owner's hand.
{1}{R}
Battle Hymn
Instant
Add {R} for each creature you control.
{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.
{R}
Burning Inquiry
Sorcery
Each player draws three cards, then discards three cards at random.
--
Castle Embereth
Land
Castle Embereth enters the battlefield tapped unless you control a Mountain.
{T}: Add {R}.
{1}{R}{R}, {T}: Creatures you control get +1/+0 until end of turn.
{1}{R}
Cavalcade of Calamity
Enchantment
Whenever a creature you control with power 1 or less attacks, Cavalcade of Calamity deals 1 damage to the player or planeswalker that creature is attacking.
{2}{R}{R}
Chain Reaction
Sorcery
Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.
{1}{R}
Chained Brute
Creature - Devil
Chained Brute doesn't untap during your untap step.
{1}, Sacrifice another creature: Untap Chained Brute. Activate only during your turn.
4 /
3
{5}{R}
Chandra's Incinerator
Creature - Elemental
This spell costs {X} less to cast, where X is the total amount of noncombat damage dealt to your opponents this turn.
Trample
Whenever a source you control deals noncombat damage to an opponent, Chandra's Incinerator deals that much damage to target creature or planeswalker that player controls.
6 /
6
{2}{R}
Chaos Warp
Instant
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
{5}{R}
Charmbreaker Devils
Creature - Devil
At the beginning of your upkeep, return an instant or sorcery card at random from your graveyard to your hand.
Whenever you cast an instant or sorcery spell, Charmbreaker Devils gets +4/+0 until end of turn.
4 /
4
{3}{R}
Dance with Devils
Instant
Create two 1/1 red Devil creature tokens. They have "When this creature dies, it deals 1 damage to any target."
{4}{R}{R}
Devils' Playground
Sorcery
Create four 1/1 red Devil creature tokens. They have "When this creature dies, it deals 1 damage to any target."
{3}{R}{R}
Dictate of the Twin Gods
Enchantment
Flash
If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.
--
Dwarven Mine
Land - Mountain
({T}: Add {R}.)
Dwarven Mine enters the battlefield tapped unless you control three or more other Mountains.
When Dwarven Mine enters the battlefield untapped, create a 1/1 red Dwarf creature token.
{3}{R}{R}
Embermaw Hellion
Creature - Hellion
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.
4 /
5
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{R}
Faithless Looting
Sorcery
Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{4}{R}{R}
Fiendish Duo
Creature - Devil
First strike
If a source would deal damage to an opponent, it deals double that damage to that player instead.
5 /
5
{3}{R}{R}{R}
Fiery Emancipation
Enchantment
If a source you control would deal damage to a permanent or player, it deals triple that damage to that permanent or player instead.
{2}
Fire Diamond
Artifact
Fire Diamond enters the battlefield tapped.
{T}: Add {R}.
{R}
Gamble
Sorcery
Search your library for a card, put that card into your hand, discard a card at random, then shuffle.
--
Geier Reach Sanitarium
Legendary Land
{T}: Add {C}.
{2}, {T}: Each player draws a card, then discards a card.
{4}
Geth's Grimoire
Artifact
Whenever an opponent discards a card, you may draw a card.
{1}{R}
Gibbering Fiend
Creature - Devil
When Gibbering Fiend enters the battlefield, it deals 1 damage to each opponent.
Delirium -- At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, Gibbering Fiend deals 1 damage to that player.
2 /
1
{1}{R}{R}
Glint-Horn Buccaneer
Creature - Minotaur Pirate
Haste
Whenever you discard a card, Glint-Horn Buccaneer deals 1 damage to each opponent.
{1}{R}, Discard a card: Draw a card. Activate only if Glint-Horn Buccaneer is attacking.
2 /
4
{4}{R}
Havoc Jester
Creature - Devil
Whenever you sacrifice a permanent, Havoc Jester deals 1 damage to any target.
5 /
5
{2}{R}{R}
Hellrider
Creature - Devil
Haste
Whenever a creature you control attacks, Hellrider deals 1 damage to the player or planeswalker it's attacking.
3 /
3
{2}{R}
Hissing Iguanar
Creature - Lizard
Whenever another creature dies, you may have Hissing Iguanar deal 1 damage to target player or planeswalker.
3 /
1
{1}{R}
Hobblefiend
Creature - Devil
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
{1}, Sacrifice another creature: Put a +1/+1 counter on Hobblefiend.
2 /
1
{3}
Howling Golem
Artifact Creature - Golem
Whenever Howling Golem attacks or blocks, each player draws a card.
2 /
3
{1}{R}
Impact Tremors
Enchantment
Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.
{4}{R}
Jaya, Venerated Firemage
Legendary Planeswalker - Jaya
If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.
-2: Jaya, Venerated Firemage deals 2 damage to any target.
L:
5
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{2}{R}
Magus of the Wheel
Creature - Human Wizard
{1}{R}, {T}, Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.
3 /
3
--
Mikokoro, Center of the Sea
Legendary Land
{T}: Add {C}.
{2}, {T}: Each player draws a card.
{2}
Mind Stone
Artifact
{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.
--
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}.)
--
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}.)
--
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}
Otherworld Atlas
Artifact
{T}: Put a charge counter on Otherworld Atlas.
{T}: Each player draws a card for each charge counter on Otherworld Atlas.
{3}{R}
Outpost Siege
Enchantment
As Outpost Siege enters the battlefield, choose Khans or Dragons.
• Khans -- At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card.
• Dragons -- Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.
{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
{2}{R}
Raid Bombardment
Enchantment
Whenever a creature you control with power 2 or less attacks, Raid Bombardment deals 1 damage to the player or planeswalker that creature is attacking.
{3}{R}{R}
Reforge the Soul
Sorcery
Each player discards their hand, then draws seven cards.
Miracle {1}{R} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)
{2}
Ruby Medallion
Artifact
Red spells you cast cost {1} less to cast.
{1}{R}
Runaway Steam-Kin
Creature - Elemental
Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin.
Remove three +1/+1 counters from Runaway Steam-Kin: Add {R}{R}{R}.
1 /
1
{2}
Runed Servitor
Artifact Creature - Construct
When Runed Servitor dies, each player draws a card.
2 /
2
{2}{R}
Shared Animosity
Enchantment
Whenever a creature you control attacks, it gets +1/+0 until end of turn for each other attacking creature that shares a creature type with it.
{5}{R}{R}
Silverclad Ferocidons
Creature - Dinosaur
Enrage -- Whenever Silverclad Ferocidons is dealt damage, each opponent sacrifices a permanent.
8 /
5
{2}{R}
Sin Prodder
Creature - Devil
Menace
At the beginning of your upkeep, reveal the top card of your library. Any opponent may have you put that card into your graveyard. If a player does, Sin Prodder deals damage to that player equal to that card's mana value. Otherwise, put that card into your hand.
3 /
2
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{2}{R}
Spiteful Prankster
Creature - Devil
As long as it's your turn, Spiteful Prankster has first strike.
Whenever another creature dies, Spiteful Prankster deals 1 damage to target player or planeswalker.
3 /
2
{2}{R}
Subira, Tulzidi Caravanner
Legendary Creature - Human Shaman
Haste
{1}: Another target creature with power 2 or less can't be blocked this turn.
{1}{R}, {T}, Discard your hand: Until end of turn, whenever a creature you control with power 2 or less deals combat damage to a player, draw a card.
2 /
3
{3}{R}
Surly Badgersaur
Creature - Badger Dinosaur
Whenever you discard a creature card, put a +1/+1 counter on Surly Badgersaur.
Whenever you discard a land card, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
Whenever you discard a noncreature, nonland card, Surly Badgersaur fights up to one target creature you don't control.
3 /
3
{2}
Swiftfoot Boots
Artifact - Equipment
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{2}{R}{R}
Tectonic Giant
Creature - Elemental Giant
Whenever Tectonic Giant attacks or becomes the target of a spell an opponent controls, choose one --
• Tectonic Giant deals 3 damage to each opponent.
• Exile the top two cards of your library. Choose one of them. Until the end of your next turn, you may play that card.
3 /
4
{3}
Temple Bell
Artifact
{T}: Each player draws a card.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{1}{R}
Thrill of Possibility
Instant
As an additional cost to cast this spell, discard a card.
Draw two cards.
{1}{R}
Tibalt's Rager
Creature - Devil
When Tibalt's Rager dies, it deals 1 damage to any target.
{1}{R}: Tibalt's Rager gets +2/+0 until end of turn.
1 /
2
{2}{R}
Tibalt, Rakish Instigator
Legendary Planeswalker - Tibalt
Your opponents can't gain life.
-2: Create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."
L:
5
{1}{R}{R}{R}
Torbran, Thane of Red Fell
Legendary Creature - Dwarf Noble
If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.
As an additional cost to cast this spell, discard a card.
Draw two cards.
{1}{R}
Underworld Breach
Enchantment
Each nonland card in your graveyard has escape. The escape cost is equal to the card's mana cost plus exile three other cards from your graveyard. (You may cast cards from your graveyard for their escape cost.)
At the beginning of the end step, sacrifice Underworld Breach.
--
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}.
{R}
Vandalblast
Sorcery
Destroy target artifact you don't control.
Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
{1}{R}
Vengeful Devil
Creature - Devil
Haste
Morbid -- {T}: Vengeful Devil deals 1 damage to any target. Activate only if a creature died this turn.
1 /
1
{R}
Vexing Devil
Creature - Devil
When Vexing Devil enters the battlefield, any opponent may have it deal 4 damage to them. If a player does, sacrifice Vexing Devil.
4 /
3
{1}
Wayfarer's Bauble
Artifact
{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{3}{R}
Wildfire Devils
Creature - Devil
When Wildfire Devils enters the battlefield and at the beginning of your upkeep, choose a player at random. That player exiles an instant or sorcery card from their graveyard. Copy that card. You may cast the copy without paying its mana cost.
4 /
2
{2}{R}
Zurzoth, Chaos Rider
Legendary Creature - Devil
Whenever an opponent draws their first card each turn, if it's not their turn, you create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."
Whenever one or more Devils you control attack one or more players, you and those players each draw a card, then discard a card at random.