Acidic Soil deals damage to each player equal to the number of lands they control.

Equipped creature has deathtouch and lifelink.

Equip {2}

This spell costs {1} less to cast for each creature on the battlefield.

Blasphemous Act deals 13 damage to each creature.

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

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.

This spell can't be countered.

+2: Each opponent gets an emblem with "At the beginning of your upkeep, this emblem deals 1 damage to you."

-3: Chandra, Awakened Inferno deals 3 damage to each non-Elemental creature.

-X: Chandra, Awakened Inferno deals X damage to target creature or planeswalker. If a permanent dealt damage this way would die this turn, exile it instead.

Whenever you cast a red spell, untap Chandra, Fire of Kaladesh.

{T}: Chandra, Fire of Kaladesh deals 1 damage to target player or planeswalker. If Chandra has dealt 3 or more damage this turn, exile her, then return her to the battlefield transformed under her owner's control.

+1: Chandra, Roaring Flame deals 2 damage to target player or planeswalker.

-2: Chandra, Roaring Flame deals 2 damage to target creature.

-7: Chandra, Roaring Flame deals 6 damage to each opponent. Each player dealt damage this way gets an emblem with "At the beginning of your upkeep, this emblem deals 3 damage to you."

Whenever a creature without flying attacks you or a planeswalker you control, Circle of Flame deals 1 damage to that creature.

Equipped creature gets +3/+3 and has protection from each color that's not in your commander's color identity.

Equip commander {3}

Equip {5}

Crackle with Power deals five times X damage to each of up to X targets.

Haste

{T}: Cunning Sparkmage deals 1 damage to any target.

Enchant player

If a source would deal damage to enchanted player, it deals double that damage to that player instead.

First strike

As an additional cost to cast red permanent spells, you may pay 2 life. Those spells cost {R} less to cast if you paid life this way. This effect reduces only the amount of red mana you pay.

Whenever you cast a red permanent spell, Defiler of Instinct deals 1 damage to any target.

{T}: Add {C}.

{1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

Flying

Whenever Drakuseth, Maw of Flames attacks, it deals 4 damage to any target and 3 damage to each of up to two other targets.

Flash

When Dualcaster Mage enters the battlefield, copy target instant or sorcery spell. You may choose new targets for the copy.

Electrickery deals 1 damage to target creature you don't control.

Overload {1}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Electrodominance deals X damage to any target. You may cast a spell with mana value X or less from your hand without paying its mana cost.

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

{2}, {T}: Draw a card. Activate only if you control three or more lands with the same name.

Imprint -- When Extraplanar Lens enters the battlefield, you may exile target land you control.

Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

{T}, Sacrifice Fabled Passage: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.

Choose three. You may choose the same mode more than once.

• Fiery Confluence deals 1 damage to each creature.

• Fiery Confluence deals 2 damage to each opponent.

• Destroy target artifact.

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

Whenever you cast a noncreature spell, Firebrand Archer deals 1 damage to each opponent.

Until end of turn, permanents you control gain "{T}: This permanent deals 1 damage to any target."

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

First strike

When Goblin Chainwhirler enters the battlefield, it deals 1 damage to each opponent and each creature and planeswalker they control.

Goblin Sharpshooter doesn't untap during your untap step.

Whenever a creature dies, untap Goblin Sharpshooter.

{T}: Goblin Sharpshooter deals 1 damage to any target.

Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.

Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, Harsh Mentor deals 2 damage to that player.

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

All creatures lose indestructible until end of turn. Hour of Devastation deals 5 damage to each creature and each non-Bolas planeswalker.

Whenever you cast a noncreature spell, Kessig Flamebreather deals 1 damage to each opponent.

+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land.

-2: Add {R} for each Mountain you control.

-5: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to any target.'"

Lightning Bolt deals 3 damage to any target.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)

Equip {0}

Nonbasic lands are Mountains.

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

If a red or artifact source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead.

Mizzium Mortars deals 4 damage to target creature you don't control.

Overload {3}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Needle Drop deals 1 damage to any target that was dealt damage this turn.

Draw a card.

Trample

Whenever Neheb, Dreadhorde Champion deals combat damage to a player or planeswalker, you may discard any number of cards. If you do, draw that many cards and add that much {R}. Until end of turn, you don't lose this mana as steps and phases end.

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.)

At the beginning of your postcombat main phase, add {R} for each 1 life your opponents have lost this turn.

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.

Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.

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

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

Price of Progress deals damage to each player equal to twice the number of nonbasic lands that player controls.

Instant and sorcery spells you cast cost {1} less to cast.

Whenever you cast an instant or sorcery spell, put a charge counter on Primal Amulet. Then if there are four or more charge counters on it, you may remove those counters and transform it.

(Transforms from Primal Amulet.)

{T}: Add one mana of any color. When that mana is spent to cast an instant or sorcery spell, copy that spell and you may choose new targets for the copy.

Choose one --

• Counter target spell if it's blue.

• Destroy target permanent if it's blue.

{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.

Menace

Players can't gain life.

Whenever another creature enters the battlefield, Rampaging Ferocidon deals 1 damage to that creature's controller.

Choose one --

• Counter target blue spell.

• Destroy target blue permanent.

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

Haste

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

Whenever an opponent casts a noncreature spell, if Scab-Clan Berserker is renowned, Scab-Clan Berserker deals 2 damage to that player.

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

Replicate {R} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Destroy target artifact.

{T}: Add {C}.

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

({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}.)

({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 {C}{C}.

Whenever a player casts a spell, Spellshock deals 2 damage to that player.

At the beginning of each player's upkeep, Sulfuric Vortex deals 2 damage to that player.

If a player would gain life, that player gains no life instead.

Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spell's mana value. You may cast a spell with mana value X or less from among cards revealed this way without paying its mana cost. Put the rest on the bottom of your library in a random order.

Defender

{T}: Thermo-Alchemist deals 1 damage to each opponent.

Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.

Counter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.

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.

Put any number of cards from your hand on the bottom of your library, then draw that many cards plus one.

Valakut Stoneforge enters the battlefield tapped.

{T}: Add {R}.

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}.

{1}{R}, {T}: Destroy target artifact. Viashino Heretic deals damage to that artifact's controller equal to the artifact's mana value.

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.

Whenever a land enters the battlefield, Zo-Zu the Punisher deals 2 damage to that land's controller.