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

Vivid Revival | Sorcery | | Return up to three target multicolored cards from your graveyard to your hand. Exile Vivid Revival. | Yeong-Hao Han

Join Shields | Instant | | Untap all creatures you control. They gain hexproof and indestructible until end of turn. (They can't be the targets of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy them.) | Winona Nelson

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