Underworld Dreams

Whenever an opponent draws a card, this enchantment deals 1 damage to that player.

Ravenous Rats

When this creature enters, target opponent discards a card.

Dusk Imp

Ascendant Evincar

Flying (This creature can't be blocked except by creatures with flying or reach.)
Other black creatures get +1/+1.
Nonblack creatures get -1/-1.

Swamp

Mortivore

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Mind Rot

Abyssal Specter

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

Consume Spirit

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

Megrim

Whenever an opponent discards a card, this enchantment deals 2 damage to that player.

Mind Shatter

Target player discards X cards at random.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Unholy Strength

Enchant creature
Enchanted creature gets +2/+1.

Demon's Horn

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

Drudge Skeletons

{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

The Rack

As this artifact enters, choose an opponent.
At the beginning of the chosen player's upkeep, this artifact deals X damage to that player, where X is 3 minus the number of cards in their hand.

Crowd of Cinders

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
Crowd of Cinders's power and toughness are each equal to the number of black permanents you control.

Terror

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

Severed Legion

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)