Demon's Horn

Whenever a player casts a black spell, you may gain 1 life.

Abyssal Specter

Flying
Whenever this creature deals damage to a player, that player discards a card.

Abyssal Gatekeeper

When this creature dies, each player sacrifices a creature of their choice.

Reiver Demon

Flying
When this creature enters, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can't be regenerated.

Fallen Angel

Flying
Sacrifice a creature: This creature gets +2/+1 until end of turn.

Swamp

Promise of Power

Choose one —
• You draw five cards and you lose 5 life.
• Create an X/X black Demon creature token with flying, where X is the number of cards in your hand.
Entwine {4} (Choose both if you pay the entwine cost.)

Cackling Imp

Dark Banishing

Destroy target nonblack creature. It can't be regenerated.

Barter in Blood

Each player sacrifices two creatures of their choice.

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Soot Imp

Flying
Whenever a player casts a nonblack spell, that player loses 1 life.

Cruel Edict

Target opponent sacrifices a creature of their choice.

Dusk Imp

Demon's Jester

Flying
Hellbent — This creature gets +2/+1 as long as you have no cards in hand.

Dark Ritual

Barren Moor

This land enters tapped.
{T}: Add {B}.
Cycling {B} ({B}, Discard this card: Draw a card.)

Overeager Apprentice

Discard a card, Sacrifice this creature: Add {B}{B}{B}.

Corrupt

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Souldrinker

Pay 3 life: Put a +1/+1 counter on this creature.

Foul Imp

Flying
When this creature enters, you lose 2 life.

Lord of the Pit

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than this creature. If you can't, this creature deals 7 damage to you.

Kuro, Pitlord

At the beginning of your upkeep, sacrifice Kuro unless you pay {B}{B}{B}{B}.
Pay 1 life: Target creature gets -1/-1 until end of turn.

Unholy Strength

Enchant creature
Enchanted creature gets +2/+1.

Oni Possession

Enchant creature
At the beginning of your upkeep, sacrifice a creature.
Enchanted creature gets +3/+3 and has trample.
Enchanted creature is a Demon Spirit.

Daggerclaw Imp

Consume Spirit

Spend only black mana on X.
Consume Spirit deals X damage to any target and you gain X life.

Breeding Pit

At the beginning of your upkeep, sacrifice this enchantment unless you pay {B}{B}.
At the beginning of your end step, create a 0/1 black Thrull creature token.

Stinkweed Imp

Flying
Whenever this creature deals combat damage to a creature, destroy that creature.
Dredge 5 (If you would draw a card, you may mill five cards instead. If you do, return this card from your graveyard to your hand.)

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.