The Lost Caverns of Ixalan

Malamet War Scribe | Creature | Cat Warrior | When Malamet War Scribe enters the battlefield, creatures you control get +2/+1 until end of turn. | Nicholas Gregory

Hurl into History | Instant | | Counter target artifact or creature spell. Discover X, where X is that spell's mana value. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.) | Eli Minaya

Defossilize | Sorcery | | Return target creature card from your graveyard to the battlefield. That creature explores, then it explores again. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard. Then repeat this process.) | Dibujante Nocturno

Goldfury Strider | Artifact Creature | Golem | Trample Tap two untapped artifacts and/or creatures you control: Target creature gets +2/+0 until end of turn. Activate only as a sorcery. | José Parodi

Rampaging Ceratops | Creature | Dinosaur | Rampaging Ceratops can't be blocked except by three or more creatures. | Nicholas Gregory

Master's Guide-Mural | Artifact | | When Master's Guide-Mural enters the battlefield, create a 4/4 white and blue Golem artifact creature token. Craft with artifact {4}{W}{W}{U} ({4}{W}{W}{U}, Exile this artifact, Exile another artifact you control or an artifact card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) | Racrufi

Uchbenbak, the Great Mistake | Legendary Creature | Skeleton Horror | Vigilance, menace Descend 8 — {4}{U}{B}: Return Uchbenbak, the Great Mistake from your graveyard to the battlefield with a finality counter on it. Activate only if there are eight or more permanent cards in your graveyard and only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.) | Steven Belledin

Hoverstone Pilgrim | Artifact Creature | Golem | Flying Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) {2}: Put target card from a graveyard on the bottom of its owner's library. | Izzy