The Lost Caverns of Ixalan

Calamitous Cave-In | Sorcery | | Calamitous Cave-In deals X damage to each creature and each planeswalker, where X is the number of Caves you control plus the number of Cave cards in your graveyard. | Diego Gisbert

Child of the Volcano | Creature | Elemental | Trample At the beginning of your end step, if you descended this turn, put a +1/+1 counter on Child of the Volcano. (You descended if a permanent card was put into your graveyard from anywhere.) | Uriah Voth

Curator of Sun's Creation | Creature | Human Artificer | Whenever you discover, discover again for the same value. This ability triggers only once each turn. | Javier Charro

Dinotomaton | Artifact Creature | Dinosaur Gnome | Menace (This creature can't be blocked except by two or more creatures.) When Dinotomaton enters the battlefield, target creature you control gains menace until end of turn. | Zoltan Boros

Geological Appraiser | Creature | Human Artificer | When Geological Appraiser enters the battlefield, if you cast it, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 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.) | Alix Branwyn

Ojer Axonil, Deepest Might | Legendary Creature | God | Trample If a red source you control would deal an amount of noncombat damage less than Ojer Axonil's power to an opponent, that source deals damage equal to Ojer Axonil's power instead. When Ojer Axonil dies, return it to the battlefield tapped and transformed under its owner's control. | Victor Adame Minguez

Rumbling Rockslide | Sorcery | | Rumbling Rockslide deals damage to target creature equal to the number of lands you control. | Johann Bodin

Caparocti Sunborn | Legendary Creature | Human Soldier | Whenever Caparocti Sunborn attacks, you may tap two untapped artifacts and/or creatures you control. If you do, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 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.) | Donato Giancola

The Belligerent | Legendary Artifact | Vehicle | Whenever The Belligerent attacks, create a Treasure token. Until end of turn, you may look at the top card of your library any time, and you may play lands and cast spells from the top of your library. Crew 3 | Bruce Brenneise