Innistrad: Crimson Vow

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