The Lost Caverns of Ixalan

Fabrication Foundry | Artifact | | {T}: Add {W}. Spend this mana only to cast an artifact spell or activate an ability of an artifact source. {2}{W}, {T}, Exile one or more other artifacts you control with total mana value X: Return target artifact card with mana value X or less from your graveyard to the battlefield. Activate only as a sorcery. | Racrufi

Get Lost | Instant | | Destroy target creature, enchantment, or planeswalker. Its controller creates two Map tokens. (They're artifacts with "{1}, {T}, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.") | Eli Minaya

Kellan, Daring Traveler | Legendary Creature | Human Faerie Scout | Whenever Kellan, Daring Traveler attacks, reveal the top card of your library. If it's a creature card with mana value 3 or less, put it into your hand. Otherwise, you may put it into your graveyard. | Marta Nael

Deeproot Pilgrimage | Enchantment | | Whenever one or more nontoken Merfolk you control become tapped, create a 1/1 blue Merfolk creature token with hexproof. | Rémi Jacquot

Malcolm, Alluring Scoundrel | Legendary Creature | Siren Pirate | Flash Flying Whenever Malcolm, Alluring Scoundrel deals combat damage to a player, put a chorus counter on it. Draw a card, then discard a card. If there are four or more chorus counters on Malcolm, you may cast the discarded card without paying its mana cost. | Fesbra

Subterranean Schooner | Artifact | Vehicle | Whenever Subterranean Schooner attacks, target creature that crewed it this turn 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 that creature, then put the card back or put it into your graveyard.) Crew 1 | Svetlin Velinov

Souls of the Lost | Creature | Spirit | As an additional cost to cast this spell, discard a card or sacrifice a permanent. Fathomless descent — Souls of the Lost's power is equal to the number of permanent cards in your graveyard and its toughness is equal to that number plus 1. | Nils Hamm

Tarrian's Journal // The Tomb of Aclazotz | Legendary Artifact // Legendary Land | // Cave | {T}, Sacrifice another artifact or creature: Draw a card. Activate only as a sorcery. {2}, {T}, Discard your hand: Transform Tarrian's Journal. // (Transforms from Tarrian's Journal.) {T}: Add {B}. {T}: You may cast a creature spell from your graveyard this turn. If you do, it enters with a finality counter on it and is a Vampire in addition to its other types. (If a creature with a finality counter on it would die, exile it instead.) | Randy Gallegos

Inti, Seneschal of the Sun | Legendary Creature | Human Knight | Whenever you attack, you may discard a card. When you do, put a +1/+1 counter on target attacking creature. It gains trample until end of turn. Whenever you discard one or more cards, exile the top card of your library. You may play that card until your next end step. | Victor Adame Minguez

Intrepid Paleontologist | Creature | Human Druid | {T}: Add one mana of any color. {2}: Exile target card from a graveyard. You may cast Dinosaur creature spells from among cards you own exiled with Intrepid Paleontologist. If you cast a spell this way, that creature enters the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.) | Irina Nordsol

Amalia Benavides Aguirre | Legendary Creature | Vampire Scout | Ward—Pay 3 life. Whenever you gain life, Amalia Benavides Aguirre explores. Then, destroy all other creatures if its power is exactly 20. (To have this creature explore, 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.) | Alix Branwyn

Wail of the Forgotten | Sorcery | | Descend 8 — Choose one. If there are eight or more permanent cards in your graveyard as you cast this spell, choose one or more instead. • Return target nonland permanent to its owner's hand. • Target opponent discards a card. • Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard. | Ryan Valle

Molten Collapse | Sorcery | | Choose one. If you descended this turn, you may choose both instead. (You descended if a permanent card was put into your graveyard from anywhere.) • Destroy target creature or planeswalker. • Destroy target noncreature, nonland permanent with mana value 1 or less. | Kasia 'Kafis' Zielińska

Throne of the Grim Captain // The Grim Captain | Legendary Artifact // Legendary Creature | // Skeleton Spirit Pirate | {T}: Mill two cards. Craft with a Dinosaur, a Merfolk, a Pirate, and a Vampire {4} ({4}, Exile this artifact, Exile the four from among permanents you control and/or cards in your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) // Menace, trample, lifelink, hexproof Whenever The Grim Captain attacks, each opponent sacrifices a nonland permanent of their choice. Then you may put an exiled creature card used to craft The Grim Captain onto the battlefield under your control tapped and attacking. | Tiffany Turrill

Treasure Map // Treasure Cove | Artifact // Land | | {1}, {T}: Scry 1. Put a landmark counter on Treasure Map. Then if there are three or more landmark counters on it, remove those counters, transform Treasure Map, and create three Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.") // (Transforms from Treasure Map.) {T}: Add {C}. {T}, Sacrifice a Treasure: Draw a card. | Néstor Ossandón Leal