The Lost Caverns of Ixalan

Buried Treasure | Artifact | Treasure | {T}, Sacrifice Buried Treasure: Add one mana of any color. {5}, Exile Buried Treasure from your graveyard: Discover 5. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 5 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.) | Jarel Threat

Careening Mine Cart | Artifact | Vehicle | Whenever Careening Mine Cart attacks, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) | Hector Ortiz

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

Chimil, the Inner Sun | Legendary Artifact | | Spells you control can't be countered. At the beginning of your end step, discover 5. (Exile cards from the top of your library until you exile a nonland card with mana value 5 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.) | Adam Paquette

Compass Gnome | Artifact Creature | Gnome | When Compass Gnome enters the battlefield, you may search your library for a basic land card or Cave card, reveal it, then shuffle and put that card on top. | David Astruga

Contested Game Ball | Artifact | | Whenever you're dealt combat damage, the attacking player gains control of Contested Game Ball and untaps it. {2}, {T}: Draw a card and put a point counter on Contested Game Ball. Then if it has five or more point counters on it, sacrifice it and create a Treasure token. | Camille Alquier

Digsite Conservator | Artifact Creature | Gnome | Sacrifice Digsite Conservator: Exile up to four target cards from a single graveyard. Activate only as a sorcery. When Digsite Conservator dies, you may pay {4}. If you do, discover 4. (Exile cards from the top of your library until you exile a nonland card with mana value 4 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.) | Racrufi

Disruptor Wanderglyph | Artifact Creature | Golem | Whenever Disruptor Wanderglyph attacks, exile target card from an opponent's graveyard. | Izzy

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

Hunter's Blowgun | Artifact | Equipment | Equipped creature gets +1/+1. Equipped creature has deathtouch as long as it's your turn. Otherwise, it has reach. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) | Hector Ortiz

Matzalantli, the Great Door // The Core | Legendary Artifact // Legendary Land | | {T}: Draw a card, then discard a card. {4}, {T}: Transform Matzalantli, the Great Door. Activate only if there are four or more permanent types among cards in your graveyard. (Artifact, battle, creature, enchantment, land, and planeswalker are permanent types.) // (Transforms from Matzalantli.) Fathomless descent — {T}: Add X mana of any one color, where X is the number of permanent cards in your graveyard. | Piotr Dura

The Millennium Calendar | Legendary Artifact | | Whenever you untap one or more permanents during your untap step, put that many time counters on The Millennium Calendar. {2}, {T}: Double the number of time counters on The Millennium Calendar. When there are 1,000 or more time counters on The Millennium Calendar, sacrifice it and each opponent loses 1,000 life. | Zoltan Boros

Roaming Throne | Artifact Creature | Golem | Ward {2} As Roaming Throne enters the battlefield, choose a creature type. Roaming Throne is the chosen type in addition to its other types. If a triggered ability of another creature you control of the chosen type triggers, it triggers an additional time. | Anastasia Balakchina

Runaway Boulder | Artifact | | Flash When Runaway Boulder enters the battlefield, it deals 6 damage to target creature an opponent controls. Cycling {2} ({2}, Discard this card: Draw a card.) | Loïc Canavaggia

Scampering Surveyor | Artifact Creature | Gnome | When Scampering Surveyor enters the battlefield, search your library for a basic land card or Cave card, put it onto the battlefield tapped, then shuffle. | Xavier Ribeiro

Sorcerous Spyglass | Artifact | | As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities. | Tyler Walpole

Sunbird Standard | Artifact | | {T}: Add one mana of any color. Craft with one or more {5} ({5}, Exile this artifact, Exile one or more other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) | Aldo Domínguez

Swashbuckler's Whip | Artifact | Equipment | Equipped creature has reach, "{2}, {T}: Tap target artifact or creature," and "{8}, {T}: Discover 10." (Exile cards from the top of your library until you exile a nonland card with mana value 10 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.) Equip {1} | Irina Nordsol

Tarrian's Soulcleaver | Legendary Artifact | Equipment | Equipped creature has vigilance. Whenever another artifact or creature is put into a graveyard from the battlefield, put a +1/+1 counter on equipped creature. Equip {2} | Marzena Nereida Piwowar

Threefold Thunderhulk | Artifact Creature | Gnome | Threefold Thunderhulk enters the battlefield with three +1/+1 counters on it. Whenever Threefold Thunderhulk enters the battlefield or attacks, create a number of 1/1 colorless Gnome artifact creature tokens equal to its power. {2}, Sacrifice another artifact: Put a +1/+1 counter on Threefold Thunderhulk. | Xavier Ribeiro

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