Innistrad: Crimson Vow

Voice of the Blessed | Creature | Spirit Cleric | Whenever you gain life, put a +1/+1 counter on Voice of the Blessed. As long as Voice of the Blessed has four or more +1/+1 counters on it, it has flying and vigilance. As long as Voice of the Blessed has ten or more +1/+1 counters on it, it has indestructible. | Anastasia Ovchinnikova

Thalia, Guardian of Thraben | Legendary Creature | Human Soldier | First strike Noncreature spells cost {1} more to cast. | Magali Villeneuve

Patchwork Crawler | Creature | Zombie Horror | {2}{U}: Exile target creature card from your graveyard and put a +1/+1 counter on Patchwork Crawler. Patchwork Crawler has all activated abilities of all creature cards exiled with it. | Fesbra

Graf Reaver | Creature | Zombie Warrior | Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Graf Reaver exploits a creature, destroy target planeswalker. At the beginning of your upkeep, Graf Reaver deals 1 damage to you. | Dave Kendall

Voldaren Bloodcaster | Creature | Vampire Wizard | Flying Whenever Voldaren Bloodcaster or another nontoken creature you control dies, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") Whenever you create a Blood token, if you control five or more Blood tokens, transform Voldaren Bloodcaster. | Kim Sokol

Dorothea, Vengeful Victim | Legendary Creature | Spirit | Flying When Dorothea, Vengeful Victim attacks or blocks, sacrifice it at end of combat. Disturb {1}{W}{U} (You may cast this card from your graveyard transformed for its disturb cost.) | Marta Nael