Innistrad: Crimson Vow

Fell Stinger | Creature | Zombie Scorpion | Deathtouch Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Fell Stinger exploits a creature, target player draws two cards and loses 2 life. | Lars Grant-West

Undead Butler | Creature | Zombie | When Undead Butler enters the battlefield, mill three cards. (Put the top three cards of your library into your graveyard.) When Undead Butler dies, you may exile it. When you do, return target creature card from your graveyard to your hand. | Nestor Ossandon Leal

Archghoul of Thraben | Creature | Zombie Cleric | Whenever Archghoul of Thraben or another Zombie you control dies, look at the top card of your library. If it's a Zombie card, you may reveal it and put it into your hand. If you don't put the card into your hand, you may put it into your graveyard. | Johann Bodin

Innocent Traveler | Creature | Human | At the beginning of your upkeep, any opponent may sacrifice a creature. If no one does, transform Innocent Traveler. | Cristi Balanescu

Restless Bloodseeker | Creature | Vampire | At the beginning of your end step, if you gained life this turn, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") Sacrifice two Blood tokens: Transform Restless Bloodseeker. Activate only as a sorcery. | Justyna Gil

Wedding Security | Creature | Vampire Soldier | Whenever Wedding Security attacks, you may sacrifice a Blood token. If you do, put a +1/+1 counter on Wedding Security and draw a card. | Francisco Miyara

Bloodsworn Squire | Creature | Vampire Soldier | {1}{B}, Discard a card: Bloodsworn Squire gains indestructible until end of turn. Tap it. Then if there are four or more creature cards in your graveyard, transform Bloodsworn Squire. (Damage and effects that say "destroy" don't destroy it.) | Darren Tan

Catapult Fodder | Creature | Zombie | At the beginning of combat on your turn, if you control three or more creatures that each have toughness greater than their power, transform Catapult Fodder. | Jesper Ejsing

Skulking Killer | Creature | Vampire Assassin | When Skulking Killer enters the battlefield, target creature an opponent controls gets -2/-2 until end of turn if that opponent controls no other creatures. | Alex Brock

Markov Purifier | Creature | Vampire Cleric | Lifelink At the beginning of your end step, if you gained life this turn, you may pay {2}. If you do, draw a card. | G-host Lee

Skull Skaab | Creature | Zombie | Exploit (When this creature enters the battlefield, you may sacrifice a creature.) Whenever a creature you control exploits a nontoken creature, create a 2/2 black Zombie creature token. | Nicholas Gregory

Bloodtithe Harvester | Creature | Vampire | When Bloodtithe Harvester enters the battlefield, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") {T}, Sacrifice Bloodtithe Harvester: Target creature gets -X/-X until end of turn, where X is twice the number of Blood tokens you control. Activate only as a sorcery. | Lucas Graciano

Ancient Lumberknot | Creature | Treefolk | Each creature you control with toughness greater than its power assigns combat damage equal to its toughness rather than its power. | Nicholas Gregory