Gloom

White spells cost {3} more to cast.
Activated abilities of white enchantments cost {3} more to activate.

Kormus Bell

All Swamps are 1/1 black creatures that are still lands.

Paralyze

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player may pay {4}. If the player does, untap the creature.

Hypnotic Specter

Flying
Whenever this creature deals damage to an opponent, that player discards a card at random.

Order of the Ebon Hand

Protection from white
{B}: This creature gains first strike until end of turn.
{B}{B}: This creature gets +1/+0 until end of turn.

Drain Life

Spend only black mana on X.
Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

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.

Mind Twist

Target player discards X cards at random.

Sol Ring

Terror

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

Urborg

{T}: Add {B}.
{T}: Target creature loses first strike or swampwalk until end of turn.

Aeolipile

{1}, {T}, Sacrifice this artifact: It deals 2 damage to any target.

Nevinyrral's Disk

This artifact enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Greed

Sinkhole

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Mishra's Factory

{T}: Add {C}.
{1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Demonic Hordes

{T}: Destroy target land.
At the beginning of your upkeep, unless you pay {B}{B}{B}, tap this creature and sacrifice a land of an opponent's choice.

Black Knight

First strike (This creature deals combat damage before creatures without first strike.)
Protection from white (This creature can't be blocked, targeted, dealt damage, or enchanted by anything white.)

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Demonic Tutor

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

Bad Moon

Maze of Ith

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Cuombajj Witches

{T}: This creature deals 1 damage to any target and 1 damage to any target of an opponent's choice.