Dark Ritual

Dark Banishing

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

Echoing Return

Return target creature card and all other cards with the same name as that card from your graveyard to your hand.

Swamp

Tainted Remedy

If an opponent would gain life, that player loses that much life instead.

Sengir Vampire

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

Gatekeeper of Malakir

Kicker {B} (You may pay an additional {B} as you cast this spell.)
When Gatekeeper of Malakir enters, if it was kicked, target player sacrifices a creature.

Murder

Unholy Strength

Enchant creature
Enchanted creature gets +2/+1.

Terror

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

Bad Moon

Artisan of Kozilek

When you cast this spell, you may return target creature card from your graveyard to the battlefield.
Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.)

Vampire Nighthawk

Consume Spirit

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