Theros

Labyrinth Champion

Labyrinth Champion {3}{R}

Creature - Human Warrior
Heroic — Whenever you cast a spell that targets Labyrinth Champion, Labyrinth Champion deals 2 damage to any target.
"It used to be a lair. Now it's just a tunnel."
2/2
Lightning Strike

Lightning Strike {1}{R}

Instant
Lightning Strike deals 3 damage to any target.
"The hand of Keranos can be seen in every rumbling storm cloud. Best not to stand where he points."
—Rakleia of Shrine Peak
Magma Jet

Magma Jet {1}{R}

Instant
Magma Jet deals 2 damage to any target. Scry 2.
Messenger's Speed

Messenger's Speed {R}

Enchantment - Aura
Enchant creature
Enchanted creature has trample and haste.
"He outran arrows. He outran even the archers' insults."
—Bayma, storyteller of Lagonna Band
Minotaur Skullcleaver

Minotaur Skullcleaver {2}{R}

Creature - Minotaur Berserker
Haste
When Minotaur Skullcleaver enters the battlefield, it gets +2/+0 until end of turn.
"Their only dreams are of full stomachs."
—Kleon the Iron-Booted
2/2
Ordeal of Purphoros

Ordeal of Purphoros {1}{R}

Enchantment - Aura
Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Purphoros.
When you sacrifice Ordeal of Purphoros, it deals 3 damage to any target.
Peak Eruption

Peak Eruption {2}{R}

Sorcery
Destroy target Mountain. Peak Eruption deals 3 damage to that land's controller.
"Early olive buds? A good omen. Flock of crows? Not so good. Mountain exploding? Bad. Very, very bad."
—Hira, street oracle
Portent of Betrayal

Portent of Betrayal {3}{R}

Sorcery
Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. Scry 1.
Priest of Iroas

Priest of Iroas {R}

Creature - Human Cleric
{3}{W}, Sacrifice Priest of Iroas: Destroy target enchantment.
"Even my last breath will be a blow struck for Iroas."
1/1
Purphoros, God of the Forge

Purphoros, God of the Forge {3}{R}

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
Purphoros's Emissary

Purphoros's Emissary {3}{R}

Enchantment Creature - Ox
Bestow {6}{R}
Menace
Enchanted creature gets +3/+3 and has menace.
3/3
Rage of Purphoros

Rage of Purphoros {4}{R}

Sorcery
Rage of Purphoros deals 4 damage to target creature. It can't be regenerated this turn. Scry 1.
Rageblood Shaman

Rageblood Shaman {1}{R}{R}

Creature - Minotaur Shaman
Trample
Other Minotaur creatures you control get +1/+1 and have trample.
"I see a spark of pure rage. Soon that spark will spread from the depths of Kragma. Soon its fire will engulf the polis."
—Hira, street oracle
2/3
Satyr Rambler

Satyr Rambler {1}{R}

Creature - Satyr
Trample
A satyr is bound by nothing—not home, not family, not loyalty.
2/1
Spark Jolt

Spark Jolt {R}

Instant
Spark Jolt deals 1 damage to any target. Scry 1.
Acolytes of Purphoros hammer the world until they see the sparks of change.
Spearpoint Oread

Spearpoint Oread {2}{R}

Enchantment Creature - Nymph
Bestow {5}{R}
First strike
Enchanted creature gets +2/+2 and has first strike.
2/2
Stoneshock Giant

Stoneshock Giant {3}{R}{R}

Creature - Giant
{6}{R}{R}: Monstrosity 3.
When Stoneshock Giant becomes monstrous, creatures without flying your opponents control can't block this turn.
5/4
Stormbreath Dragon

Stormbreath Dragon {3}{R}{R}

Creature - Dragon
Flying, haste, protection from white
{5}{R}{R}: Monstrosity 3.
When Stormbreath Dragon becomes monstrous, it deals damage to each opponent equal to the number of cards in that player's hand.
4/4
Titan of Eternal Fire

Titan of Eternal Fire {5}{R}

Creature - Giant
Each Human creature you control has "{R}, {T}: This creature deals 1 damage to any target."
There is no gift more precious or more perilous than fire.
5/6
Titan's Strength

Titan's Strength {R}

Instant
Target creature gets +3/+1 until end of turn. Scry 1.
Two-Headed Cerberus

Two-Headed Cerberus {1}{R}{R}

Creature - Dog
Double strike
The left head keeps the right head starved as motivation to track new prey.
1/2
Wild Celebrants

Wild Celebrants {3}{R}{R}

Creature - Satyr
When Wild Celebrants enters the battlefield, you may destroy target artifact.
"You can tell something's really valuable by the sound it makes when you slam your staff into it."
5/3
Agent of Horizons

Agent of Horizons {2}{G}

Creature - Human Rogue
{2}{U}: Agent of Horizons can't be blocked this turn.
The light in the woods just before dawn reveals a glimmering network of branches, roots, and spiderwebs. The acolytes of Kruphix walk this lattice unseen.
3/2
Anthousa, Setessan Hero

Anthousa, Setessan Hero {3}{G}{G}

Legendary Creature - Human Warrior
Heroic — Whenever you cast a spell that targets Anthousa, Setessan Hero, up to three target lands you control each become 2/2 Warrior creatures until end of turn. They're still lands.
The warriors she leads can rarely keep pace with her, and neither can the tales.
4/5
Arbor Colossus

Arbor Colossus {2}{G}{G}{G}

Creature - Giant
Reach
{3}{G}{G}{G}: Monstrosity 3.
When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.
6/6