Gatecrash

Horror of the Dim | Creature | Horror | {U}: Horror of the Dim gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.) | Jack Wang

Ogre Slumlord | Creature | Ogre Rogue | Whenever another nontoken creature dies, you may create a 1/1 black Rat creature token. Rats you control have deathtouch. | Trevor Claxton

Shadow Slice | Sorcery | | Target opponent loses 3 life. Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.) | Raymond Swanland

Obzedat, Ghost Council | Legendary Creature | Spirit Advisor | When Obzedat, Ghost Council enters the battlefield, target opponent loses 2 life and you gain 2 life. At the beginning of your end step, you may exile Obzedat. If you do, return it to the battlefield under its owner's control at the beginning of your next upkeep. It gains haste. | Svetlin Velinov

Vizkopa Confessor | Creature | Human Cleric | Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) When Vizkopa Confessor enters the battlefield, pay any amount of life. Target opponent reveals that many cards from their hand. You choose one of them and exile it. | Ryan Pancoast

Consuming Aberration | Creature | Horror | Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards. Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard. | Karl Kopinski

Coerced Confession | Sorcery | | Target player mills four cards. You draw a card for each creature card put into their graveyard this way. | Mathias Kollros