Guilds of Ravnica

Kraul Foragers | Creature | Insect Scout | Undergrowth — When Kraul Foragers enters the battlefield, you gain 1 life for each creature card in your graveyard. | Aaron Miller

Rosemane Centaur | Creature | Centaur Soldier | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Vigilance | Nils Hamm

Trostani Discordant | Legendary Creature | Dryad | Other creatures you control get +1/+1. When Trostani Discordant enters the battlefield, create two 1/1 white Soldier creature tokens with lifelink. At the beginning of your end step, each player gains control of all creatures they own. | Chase Stone

Underrealm Lich | Creature | Zombie Elf Shaman | If you would draw a card, instead look at the top three cards of your library, then put one into your hand and the rest into your graveyard. Pay 4 life: Underrealm Lich gains indestructible until end of turn. Tap it. | Anna Steinbauer