Foundations

Hungry Ghoul | Creature | Zombie | {1}, Sacrifice another creature: Put a +1/+1 counter on this creature. | Paolo Parente

Sanguine Syphoner | Creature | Vampire Warlock | Whenever this creature attacks, each opponent loses 1 life and you gain 1 life. | Irina Nordsol

Tinybones, Bauble Burglar | Legendary Creature | Skeleton Rogue | Whenever an opponent discards a card, exile it from their graveyard with a stash counter on it. During your turn, you may play cards you don't own with stash counters on them from exile, and mana of any type can be spent to cast those spells. {3}{B}, {T}: Each opponent discards a card. Activate only as a sorcery. | Leonardo Santanna

Vampire Gourmand | Creature | Vampire | Whenever this creature attacks, you may sacrifice another creature. If you do, draw a card and this creature can't be blocked this turn. | Chris Rallis

Vengeful Bloodwitch | Creature | Vampire Warlock | Whenever this creature or another creature you control dies, target opponent loses 1 life and you gain 1 life. | Jarel Threat

Zul Ashur, Lich Lord | Legendary Creature | Zombie Warlock | Ward—Pay 2 life. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 2 life.) {T}: You may cast target Zombie creature card from your graveyard this turn. | Raluca Marinescu

Burglar Rat | Creature | Rat | When Burglar Rat enters, each opponent discards a card. | Tyler Walpole

Reassembling Skeleton | Creature | Skeleton Warrior | {1}{B}: Return Reassembling Skeleton from your graveyard to the battlefield tapped. | Austin Hsu

Gatekeeper of Malakir | Creature | Vampire Warrior | 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. | Karl Kopinski