Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever Academy Raider deals combat damage to a player, you may discard a card. If you do, draw a card.

Whenever a creature an opponent controls dies, Altac Bloodseeker gets +2/+0 and gains first strike and haste until end of turn. (It deals combat damage before creatures without first strike, and it can attack and {T} as soon as it comes under your control.)

Creatures you control have trample.

Creatures your opponents control lose trample and can't have or gain trample.

Target attacking creature gets +X/+0 until end of turn.

Draw a card at the beginning of the next turn's upkeep.

{T}: Remove target blocking creature from combat. Creatures it was blocking that hadn't become blocked by another creature this combat become unblocked, then it blocks an attacking creature of your choice. Activate only during the declare blockers step.

Other Barbarian creatures get +1/+1.

{R}: Another target Barbarian creature gets +1/+0 until end of turn.

Discard a card at random: Barbarian Bully gets +2/+2 until end of turn unless a player has Barbarian Bully deal 4 damage to them. Activate only once each turn.

{T}: Add {R}. Barbarian Ring deals 1 damage to you.

Threshold -- {R}, {T}, Sacrifice Barbarian Ring: It deals 2 damage to any target. Activate only if seven or more cards are in your graveyard.

Blaze deals X damage to any target.

Nonbasic lands are Mountains.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it.)

First strike (This creature deals combat damage before creatures without first strike.)

Red creatures you control have first strike.

{T}: Bloodshot Trainee deals 4 damage to target creature. Activate only if Bloodshot Trainee's power is 4 or greater.

{R}, {T}, Discard a card: Target creature can't block this turn.

Whenever Borderland Marauder attacks, it gets +2/+0 until end of turn.

Elemental spells and Warrior spells you cast cost {1} less to cast.

Reinforce 1--{1}{R} ({1}{R}, Discard this card: Put a +1/+1 counter on target creature.)

Any player may have Browbeat deal 5 damage to them. If no one does, target player draws three cards.

As Caged Sun enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Discard your hand, then draw two cards.

Engulfing Flames deals 1 damage to target creature. It can't be regenerated this turn.

Flashback {3}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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.)

Firebolt deals 2 damage to any target.

Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Forgotten Cave enters the battlefield tapped.

{T}: Add {R}.

Cycling {R} ({R}, Discard this card: Draw a card.)

Forked Bolt deals 2 damage divided as you choose among one or two targets.

Whenever another red creature enters the battlefield under your control, Foundry Street Denizen gets +1/+0 until end of turn.

Whenever Frenzied Goblin attacks, you may pay {R}. If you do, target creature can't block this turn.

As Gauntlet of Power enters the battlefield, choose a color.

Creatures of the chosen color get +1/+1.

Whenever a basic land is tapped for mana of the chosen color, its controller adds an additional one mana of that color.

Ghitu Encampment enters the battlefield tapped.

{T}: Add {R}.

{1}{R}: Ghitu Encampment becomes a 2/1 red Warrior creature with first strike until end of turn. It's still a land. (It deals combat damage before creatures without first strike.)

You may cast Ghitu Fire as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.)

Ghitu Fire deals X damage to any target.

Kicker {R} (You may pay an additional {R} as you cast this spell.)

When Goblin Bushwhacker enters the battlefield, if it was kicked, creatures you control get +1/+0 and gain haste until end of turn.

At the beginning of your upkeep, create a colorless artifact token named Land Mine with "{R}, Sacrifice this artifact: This artifact deals 2 damage to target attacking creature without flying." Then flip a coin. If you lose the flip, Goblin Kaboomist deals 2 damage to itself.

Sacrifice Goblin Skycutter: It deals 2 damage to target creature with flying. That creature loses flying until end of turn.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

If a creature you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

As Hall of Triumph enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Haste

Chroma -- When Heartlash Cinder enters the battlefield, it gets +X/+0 until end of turn, where X is the number of red mana symbols in the mana costs of permanents you control.

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

First strike, haste

{T}: Jeska, Warrior Adept deals 1 damage to any target.

Enchant creature

Enchanted creature has first strike.

Threshold -- Enchanted creature gets +3/+0 as long as seven or more cards are in your graveyard.

Haste (This creature can attack and {T} as soon as it comes under your control.)

{T}: Kamahl, Pit Fighter deals 3 damage to any target.

Whenever a creature an opponent controls attacks, if you're the defending player, create a 3/3 red Ogre creature token unless that creature's controller pays {3}.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

Kuldotha Ringleader attacks each combat if able.

Whenever Laccolith Warrior becomes blocked, you may have it deal damage equal to its power to target creature. If you do, Laccolith Warrior assigns no combat damage this turn.

Lightning Bolt deals 3 damage to any target.

Each creature that's a Barbarian, a Warrior, or a Berserker gets +2/+2 and has haste.

({T}: Add {R}.)

Madblind Mountain enters the battlefield tapped.

{R}, {T}: Shuffle your library. Activate only if you control two or more red permanents.

When Manic Vandal enters the battlefield, destroy target artifact.

All creatures have haste.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Haste

Mudbrawler Cohort gets +1/+1 as long as you control another red creature.

When Mudbutton Torchrunner dies, it deals 3 damage to any target.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

As Obelisk of Urd enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +2/+2.

Equipped creature gets +2/+1 and has haste.

Whenever a Warrior creature enters the battlefield, you may attach Obsidian Battle-Axe to it.

Equip {3}

Whenever another creature enters the battlefield under your control, that creature gets +2/+0 and gains haste until end of turn. (It can attack and {T} this turn.)

Whenever you cast a creature spell, tap target creature.

Other red creatures you control get +1/+1.

{R}, {T}: Another target red creature you control gains haste until end of turn. (It can attack and {T} this turn.)

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

Whenever a Goblin enters the battlefield under your control, you may put a quest counter on Quest for the Goblin Lord.

As long as Quest for the Goblin Lord has five or more quest counters on it, creatures you control get +2/+0.

Haste (This creature can attack and {T} as soon as it comes under your control.)

First strike

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Searing Blaze deals 1 damage to target player or planeswalker and 1 damage to target creature that player or that planeswalker's controller controls.

Landfall -- If you had a land enter the battlefield under your control this turn, Searing Blaze deals 3 damage to that player or planeswalker and 3 damage to that creature instead.

Searing Blood deals 2 damage to target creature. When that creature dies this turn, Searing Blood deals 3 damage to the creature's controller.

{T}: Add {C}.

{2}{R}, {T}: Shivan Gorge deals 1 damage to each opponent.

Shock deals 2 damage to any target.

At the beginning of your upkeep or whenever you cast a red spell, put a charge counter on Shrine of Burning Rage.

{3}, {T}, Sacrifice Shrine of Burning Rage: It deals damage equal to the number of charge counters on it to any target.

Players can't gain life this turn. Damage can't be prevented this turn. Skullcrack deals 3 damage to target player or planeswalker.

Smoldering Crater enters the battlefield tapped.

{T}: Add {R}.

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

Smoldering Spires enters the battlefield tapped.

When Smoldering Spires enters the battlefield, target creature can't block this turn.

{T}: Add {R}.

When Spellgorger Barbarian enters the battlefield, discard a card at random.

When Spellgorger Barbarian leaves the battlefield, draw a card.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Spinerock Knoll enters the battlefield tapped.

{T}: Add {R}.

{R}, {T}: You may play the exiled card without paying its mana cost if an opponent was dealt 7 or more damage this turn.

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}

Tarfire deals 2 damage to any target.

Teetering Peaks enters the battlefield tapped.

When Teetering Peaks enters the battlefield, target creature gets +2/+0 until end of turn.

{T}: Add {R}.

Choose one --

• Thunderbolt deals 3 damage to target player or planeswalker.

• Thunderbolt deals 4 damage to target creature with flying.

As an additional cost to cast this spell, discard a card.

Draw two cards.

Equipped creature gets +3/+3.

Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the creature leaves.)

{1}{R}, Sacrifice Vulshok Replica: It deals 3 damage to target player or planeswalker.

As an additional cost to cast this spell, discard a card.

Draw two cards.