Child of Night

Animate Dead

Enchant creature card in a graveyard
When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Skyshroud Vampire

Flying
Discard a creature card: This creature gets +2/+2 until end of turn.

Recover

Return target creature card from your graveyard to your hand.
Draw a card.

Bloodhusk Ritualist

Multikicker {B} (You may pay an additional {B} any number of times as you cast this spell.)
When this creature enters, target opponent discards a card for each time it was kicked.

Vengeant Vampire

Lifelink
When this creature dies, destroy target creature an opponent controls and you gain 4 life.

Murder

Ruthless Cullblade

This creature gets +2/+1 as long as an opponent has 10 or less life.

Blood Seeker

Whenever a creature an opponent controls enters, you may have that player lose 1 life.

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.

Crossway Troublemakers

Attacking Vampires you control have deathtouch and lifelink. (Any amount of damage they deal to a creature is enough to destroy it. Damage dealt by those creatures also causes their controller to gain that much life.)
Whenever a Vampire you control dies, you may pay 2 life. If you do, draw a card.

Brink of Disaster

Enchant creature or land
When enchanted permanent becomes tapped, destroy it.

Gatekeeper of Malakir

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

Vampire Aristocrat

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

Feast of Blood

Cast this spell only if you control two or more Vampires.
Destroy target creature. You gain 4 life.

Dark Bargain

Look at the top three cards of your library. Put two of them into your hand and the other into your graveyard. Dark Bargain deals 2 damage to you.

Altar's Reap

As an additional cost to cast this spell, sacrifice a creature.
Draw two cards.

Dutiful Return

Return up to two target creature cards from your graveyard to your hand.

Skymarch Bloodletter

Flying
When this creature enters, target opponent loses 1 life and you gain 1 life.

Pulse Tracker

Whenever this creature attacks, each opponent loses 1 life.

Last Kiss

Last Kiss deals 2 damage to target creature and you gain 2 life.

Vengeful Bloodwitch

Whenever this creature or another creature you control dies, target opponent loses 1 life and you gain 1 life.

Ashes to Ashes

Exile two target nonartifact creatures. Ashes to Ashes deals 5 damage to you.

Consecrated by Blood

Enchant creature
Enchanted creature gets +2/+2 and has flying and "Sacrifice two other creatures: Regenerate this creature." (The next time the creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Dusk Legion Zealot

When this creature enters, you draw a card and you lose 1 life.

Stromkirk Bloodthief

At the beginning of your end step, if an opponent lost life this turn, put a +1/+1 counter on target Vampire you control.

Sacrifice

As an additional cost to cast this spell, sacrifice a creature.
Add an amount of {B} equal to the sacrificed creature's mana value.

Vampire Neonate

{2}, {T}: Each opponent loses 1 life and you gain 1 life.

Stabbing Pain

Target creature gets -1/-1 until end of turn. Tap that creature.

Vampire Spawn

When this creature enters, each opponent loses 2 life and you gain 2 life.

Untamed Hunger

Enchant creature
Enchanted creature gets +2/+1 and has menace. (It can't be blocked except by two or more creatures.)

Marsh Gas

All creatures get -2/-0 until end of turn.

Vampire Nighthawk

Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Urge to Feed

Target creature gets -3/-3 until end of turn. You may tap any number of untapped Vampire creatures you control. If you do, put a +1/+1 counter on each of those Vampires.

Desperate Bloodseeker

Lifelink
When this creature enters, target player mills two cards. (They put the top two cards of their library into their graveyard.)

Macabre Waltz

Return up to two target creature cards from your graveyard to your hand, then discard a card.