Theros Beyond Death

Heroes of the Revel | Creature | Satyr Soldier | When Heroes of the Revel enters the battlefield, create a 1/1 red Satyr creature token with "This creature can't block." Whenever you cast a spell that targets Heroes of the Revel, creatures you control get +1/+0 until end of turn. | Zoltan Boros

Nyxborn Brute | Enchantment Creature | Cyclops | | Zoltan Boros

Ox of Agonas | Creature | Ox | When Ox of Agonas enters the battlefield, discard your hand, then draw three cards. Escape—{R}{R}, Exile eight other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.) Ox of Agonas escapes with a +1/+1 counter on it. | Lie Setiawan

Purphoros, Bronze-Blooded | Legendary Enchantment Creature | God | Indestructible As long as your devotion to red is less than five, Purphoros isn't a creature. Other creatures you control have haste. {2}{R}: You may put a red creature card or an artifact creature card from your hand onto the battlefield. Sacrifice it at the beginning of the next end step. | Eric Deschamps

Skophos Warleader | Creature | Minotaur Warrior | {R}, Sacrifice another creature or an enchantment: Skophos Warleader gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures.) | Svetlin Velinov

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