When Abyssal Gatekeeper dies, each player sacrifices a creature.
1 /
1
{3}{B}{B}
Anowon, the Ruin Sage
Legendary Creature - Vampire Shaman
At the beginning of your upkeep, each player sacrifices a non-Vampire creature.
4 /
3
{1}
Blade of the Bloodchief
Artifact - Equipment
Whenever a creature dies, put a +1/+1 counter on equipped creature. If equipped creature is a Vampire, put two +1/+1 counters on it instead.
Equip {1}
{5}{B}{B}
Butcher of Malakir
Creature - Vampire Warrior
Flying
Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature.
5 /
4
{B}{B}
Cordial Vampire
Creature - Vampire
Whenever Cordial Vampire or another creature dies, put a +1/+1 counter on each Vampire you control.
1 /
1
{3}
Filigree Familiar
Artifact Creature - Fox
When Filigree Familiar enters the battlefield, you gain 2 life.
When Filigree Familiar dies, draw a card.
2 /
2
{4}{B}{B}
Harvester of Souls
Creature - Demon
Deathtouch
Whenever another nontoken creature dies, you may draw a card.
5 /
5
{2}
Mask of Avacyn
Artifact - Equipment
Equipped creature gets +1/+2 and has hexproof. (It can't be the target of spells or abilities your opponents control.)
Equip {3}
{2}{B}
Merciless Executioner
Creature - Orc Warrior
When Merciless Executioner enters the battlefield, each player sacrifices a creature.
3 /
1
{2}{B}
Midnight Reaper
Creature - Zombie Knight
Whenever a nontoken creature you control dies, Midnight Reaper deals 1 damage to you and you draw a card.
3 /
2
{2}{B}{B}
Sangromancer
Creature - Vampire Shaman
Flying
Whenever a creature an opponent controls dies, you may gain 3 life.
Whenever an opponent discards a card, you may gain 3 life.
3 /
3
{B}
Shadow Alley Denizen
Creature - Vampire Rogue
Whenever another black creature enters the battlefield under your control, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)
1 /
1
{4}
Solemn Simulacrum
Artifact Creature - Golem
When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
When Solemn Simulacrum dies, you may draw a card.
2 /
2
{1}{B}{B}
Toshiro Umezawa
Legendary Creature - Human Samurai
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
Whenever a creature an opponent controls dies, you may cast target instant card from your graveyard. If that spell would be put into a graveyard, exile it instead.
2 /
2
{2}{B}
Yahenni, Undying Partisan
Legendary Creature - Aetherborn Vampire
Haste
Whenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.
Sacrifice another creature: Yahenni gains indestructible until end of turn.