The Lost Caverns of Ixalan

Envoy of Okinec Ahau | Creature | Cat Advisor | {4}{W}: Create a 1/1 colorless Gnome artifact creature token. | Zoltan Boros

Glorifier of Suffering | Creature | Vampire Soldier | When Glorifier of Suffering enters the battlefield, you may sacrifice another creature or artifact. When you do, put a +1/+1 counter on each of up to two target creatures. | Lauren K. Cannon

Thousand Moons Infantry | Creature | Human Soldier | Untap Thousand Moons Infantry during each other player's untap step. | Manuel Castañón

Sage of Days | Creature | Human Wizard | When Sage of Days enters the battlefield, look at the top three cards of your library. You may put one of those cards back on top of your library. Put the rest into your graveyard. | Aldo Domínguez

Waterwind Scout | Creature | Merfolk Scout | Flying When Waterwind Scout enters the battlefield, create a Map token. (It's an artifact with "{1}, {T}, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.") | Alix Branwyn

Acolyte of Aclazotz | Creature | Vampire Cleric | {T}, Sacrifice another creature or artifact: Each opponent loses 1 life and you gain 1 life. | Irina Nordsol

Deep Goblin Skulltaker | Creature | Goblin Warrior | Menace At the beginning of your end step, if you descended this turn, put a +1/+1 counter on Deep Goblin Skulltaker. (You descended if a permanent card was put into your graveyard from anywhere.) | Cristi Balanescu

Screaming Phantom | Creature | Spirit | Flying Whenever Screaming Phantom attacks, mill a card. (Put the top card of your library into your graveyard.) | Halil Ural

Brazen Blademaster | Creature | Orc Pirate | Whenever Brazen Blademaster attacks while you control two or more artifacts, it gets +2/+1 until end of turn. | Jarel Threat

Hotfoot Gnome | Artifact Creature | Gnome | Haste {T}: Another target creature gains haste until end of turn. | Svetlin Velinov

Plundering Pirate | Creature | Orc Pirate | When Plundering Pirate enters the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") | Francisco Miyara

Armored Kincaller | Creature | Dinosaur | When Armored Kincaller enters the battlefield, you may reveal a Dinosaur card from your hand. If you do or if you control another Dinosaur, you gain 3 life. | John Tedrick

River Herald Guide | Creature | Merfolk Scout | Vigilance When River Herald Guide enters the battlefield, it explores. (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.) | David Astruga

Cartographer's Companion | Artifact Creature | Gnome | When Cartographer's Companion enters the battlefield, create a Map token. (It's an artifact with "{1}, {T}, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.") | Chuck Lukacs