Theros Beyond Death

Kunoros, Hound of Athreos | Legendary Creature | Dog | Vigilance, menace, lifelink Creature cards in graveyards can't enter the battlefield. Players can't cast spells from graveyards. | Zezhou Chen

Atris, Oracle of Half-Truths | Legendary Creature | Human Advisor | Menace When Atris, Oracle of Half-Truths enters the battlefield, target opponent looks at the top three cards of your library and separates them into a face-down pile and a face-up pile. Put one pile into your hand and the other into your graveyard. | Bastien L. Deharme

Devourer of Memory | Creature | Nightmare | Whenever one or more cards are put into your graveyard from your library, Devourer of Memory gets +1/+1 until end of turn and can't be blocked this turn. {1}{U}{B}: Mill a card. | Daarken

Kroxa, Titan of Death's Hunger | Legendary Creature | Elder Giant | When Kroxa enters the battlefield, sacrifice it unless it escaped. Whenever Kroxa enters the battlefield or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape—{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) | Vincent Proce

Slaughter-Priest of Mogis | Creature | Minotaur Shaman | Whenever you sacrifice a permanent, Slaughter-Priest of Mogis gets +2/+0 until end of turn. {2}, Sacrifice another creature or an enchantment: Slaughter-Priest of Mogis gains first strike until end of turn. | Steve Prescott

Acolyte of Affliction | Creature | Human Cleric | When Acolyte of Affliction enters the battlefield, mill two cards, then you may return a permanent card from your graveyard to your hand. | Chase Stone

Polukranos, Unchained | Legendary Creature | Zombie Hydra | Polukranos enters the battlefield with six +1/+1 counters on it. It escapes with twelve +1/+1 counters on it instead. If damage would be dealt to Polukranos while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from it. {1}{B}{G}: Polukranos fights another target creature. Escape—{4}{B}{G}, Exile six other cards from your graveyard. | Chris Rahn