Guilds of Ravnica

Etrata, the Silencer | Legendary Creature | Vampire Assassin | Etrata, the Silencer can't be blocked. Whenever Etrata deals combat damage to a player, exile target creature that player controls and put a hit counter on that card. That player loses the game if they own three or more exiled cards with hit counters on them. Etrata's owner shuffles Etrata into their library. | Bastien L. Deharme

Thief of Sanity | Creature | Specter | Flying Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may look at and cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell. | Igor Kieryluk

Unmoored Ego | Sorcery | | Choose a card name. Search target opponent's graveyard, hand, and library for up to four cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way. | Volkan Baǵa

Connive | Sorcery | | Gain control of target creature with power 2 or less. | Dan Scott

Assassin's Trophy | Instant | | Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle. | Seb McKinnon

Charnel Troll | Creature | Troll | Trample At the beginning of your upkeep, exile a creature card from your graveyard. If you do, put a +1/+1 counter on Charnel Troll. Otherwise, sacrifice it. {B}{G}, Discard a creature card: Put a +1/+1 counter on Charnel Troll. | Daniel Ljunggren

Izoni, Thousand-Eyed | Legendary Creature | Elf Shaman | Undergrowth — When Izoni, Thousand-Eyed enters the battlefield, create a 1/1 black and green Insect creature token for each creature card in your graveyard. {B}{G}, Sacrifice another creature: You gain 1 life and draw a card. | Eric Deschamps

Find | Sorcery | | Return up to two target creature cards from your graveyard to your hand. | Tomasz Jedruszek