Theros Beyond Death

Allure of the Unknown | Sorcery | | Reveal the top six cards of your library. An opponent exiles a nonland card from among them, then you put the rest into your hand. That opponent may cast the exiled card without paying its mana cost. | Seb McKinnon

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