Blasphemous Edict | Sorcery | | You may pay {B} rather than pay this spell's mana cost if there are thirteen or more creatures on the battlefield.
Each player sacrifices thirteen creatures of their choice. | Andrew Mar
Bloodthirsty Conqueror | Creature | Vampire Knight | Flying, deathtouch
Whenever an opponent loses life, you gain that much life. (Damage causes loss of life.) | Dmitry Burmak
High-Society Hunter | Creature | Vampire Noble | Flying
Whenever this creature attacks, you may sacrifice another creature. If you do, put a +1/+1 counter on this creature.
Whenever another nontoken creature dies, draw a card. | Daneen Wilkerson
Tragic Banshee | Creature | Spirit | Morbid — When this creature enters, target creature an opponent controls gets -1/-1 until end of turn. If a creature died this turn, that creature gets -13/-13 instead. | Camille Alquier
Vampire Soulcaller | Creature | Vampire Warlock | Flying
This creature can't block.
When this creature enters, return target creature card from your graveyard to your hand. | Aaron J. Riley
Painful Quandary | Enchantment | | Whenever an opponent casts a spell, that player loses 5 life unless they discard a card. | David Palumbo
Consuming Aberration | Creature | Horror | Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards.
Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard. | Karl Kopinski