Howling Banshee

Flying
When Howling Banshee enters, each player loses 3 life.

Baneslayer Angel

Flying, first strike, lifelink, protection from Demons and from Dragons

Ajani Goldmane

+1: You gain 2 life.
−1: Put a +1/+1 counter on each creature you control. Those creatures gain vigilance until end of turn.
−6: Create a white Avatar creature token. It has "This creature's power and toughness are each equal to your life total."

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Safe Passage

Prevent all damage that would be dealt to you and creatures you control this turn.

Child of Night

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Rise from the Grave

Put target creature card from a graveyard onto the battlefield under your control. That creature is a black Zombie in addition to its other colors and types.

Plains

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.)

Gravedigger

When Gravedigger enters, you may return target creature card from your graveyard to your hand.

Wall of Bone

Defender (This creature can't attack.)
{B}: Regenerate Wall of Bone. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Tendrils of Corruption

Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.

Dread Warlock

Dread Warlock can't be blocked except by black creatures.

Kelinore Bat

Cemetery Reaper

Other Zombie creatures you control get +1/+1.
{2}{B}, {T}: Exile target creature card from a graveyard. Create a 2/2 black Zombie creature token.