The Lost Caverns of Ixalan

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

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

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

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