Ghostly Flame

Black and/or red permanents and spells are colorless sources of damage.

Act of Treason

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)

Flowstone Salamander

{R}: Flowstone Salamander deals 1 damage to target creature blocking it.

Brothers of Fire

{1}{R}{R}: Brothers of Fire deals 1 damage to any target and 1 damage to you.

Tymaret, Chosen from Death

Tymaret's toughness is equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)
{1}{B}: Exile up to two target cards from graveyards. You gain 1 life for each creature card exiled this way.

Funeral Rites

You draw two cards, lose 2 life, then mill two cards.

Mindwrack Harpy

Flying
At the beginning of combat on your turn, each player mills three cards.

Dauthi Mercenary

Shadow (This creature can block or be blocked by only creatures with shadow.)
{1}{B}: Dauthi Mercenary gets +1/+0 until end of turn.

Ironclaw Orcs

Ironclaw Orcs can't block creatures with power 2 or greater.

Flame Spirit

{R}: Flame Spirit gets +1/+0 until end of turn.

Goblin Elite Infantry

Whenever Goblin Elite Infantry blocks or becomes blocked, it gets -1/-1 until end of turn.

Songs of the Damned

Add {B} for each creature card in your graveyard.

Dread of Night

Gravebreaker Lamia

Lifelink
When Gravebreaker Lamia enters, search your library for a card, put it into your graveyard, then shuffle.
Spells you cast from your graveyard cost {1} less to cast.

Flowstone Blade

Enchant creature
{R}: Enchanted creature gets +1/-1 until end of turn.

Lightning Elemental

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

Pharika's Libation

Choose one —
• Target opponent sacrifices a creature of their choice.
• Target opponent sacrifices an enchantment of their choice.

Blight-Breath Catoblepas

When Blight-Breath Catoblepas enters, target creature an opponent controls gets -X/-X until end of turn, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Flowstone Giant

{R}: Flowstone Giant gets +2/-2 until end of turn.

The Wretched

At end of combat, gain control of all creatures blocking The Wretched for as long as you control The Wretched.

Serpent Warrior

When Serpent Warrior enters, you lose 3 life.

Fanning the Flames

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)
Fanning the Flames deals X damage to any target.

Venomous Hierophant

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When Venomous Hierophant enters, mill three cards. (Put the top three cards of your library into your graveyard.)

Firebreathing

Enchant creature
{R}: Enchanted creature gets +1/+0 until end of turn.

Dark Ritual

Hulking Goblin

Soul Burn

Spend only black and/or red mana on X.
Soul Burn deals X damage to any target. You gain life equal to the damage dealt, but not more than the amount of {B} spent on X, the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Flowstone Shambler

{R}: Flowstone Shambler gets +1/-1 until end of turn.

Abyssal Specter

Flying
Whenever Abyssal Specter deals damage to a player, that player discards a card.

Pyrotechnics

Pyrotechnics deals 4 damage divided as you choose among any number of targets.

Tremor

Tremor deals 1 damage to each creature without flying.

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Shattering Pulse

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)
Destroy target artifact.

Mogg Squad

Mogg Squad gets -1/-1 for each other creature on the battlefield.

Kroxa, Titan of Death's Hunger

When Kroxa enters, sacrifice it unless it escaped.
Whenever Kroxa enters or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life.
Escape—{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Hill Giant

Mons's Goblin Raiders

Tendrils of Despair

As an additional cost to cast this spell, sacrifice a creature.
Target opponent discards two cards.

Soul-Guide Lantern

When this artifact enters, exile target card from a graveyard.
{T}, Sacrifice this artifact: Exile each opponent's graveyard.
{1}, {T}, Sacrifice this artifact: Draw a card.