The Lost Caverns of Ixalan

Belligerent Yearling | Creature | Dinosaur | Trample Whenever another Dinosaur enters the battlefield under your control, you may have Belligerent Yearling's base power become equal to that creature's power until end of turn. | Maxime Minard

Dowsing Device // Geode Grotto | Artifact // Land | // Cave | Whenever Dowsing Device or another artifact you control enters, up to one target creature you control gets +1/+0 and gains haste until end of turn. Then transform Dowsing Device if you control four or more artifacts. // (Transforms from Dowsing Device.) {T}: Add {R}. {2}{R}, {T}: Until end of turn, target creature gains haste and gets +X/+0, where X is the number of artifacts you control. Activate only as a sorcery. | Olena Richards

Enterprising Scallywag | Creature | Goblin Pirate | At the beginning of your end step, if you descended this turn, create a Treasure token. (You descended if a permanent card was put into your graveyard from anywhere.) | Denman Rooke

Saheeli's Lattice // Mastercraft Raptor | Artifact // Artifact Creature | // Dinosaur | When Saheeli's Lattice enters, you may discard a card. If you do, draw two cards. Craft with one or more Dinosaurs {4}{R} ({4}{R}, Exile this artifact, Exile one or more Dinosaurs you control and/or Dinosaur cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) // Mastercraft Raptor's power is equal to the total power of the exiled cards used to craft it. | Zoltan Boros

Zoyowa's Justice | Instant | | The owner of target artifact or creature with mana value 1 or greater shuffles it into their library. Then that player discovers X, where X is its mana value. (They exile cards from the top of their library until they exile a nonland card with that mana value or less. They cast it without paying its mana cost or put it into their hand. They put the rest on the bottom in a random order.) | Nestor Ossandon Leal

Captain Storm, Cosmium Raider | Legendary Creature | Human Pirate | Whenever an artifact enters the battlefield under your control, put a +1/+1 counter on target Pirate you control. | Diego Gisbert

Zoyowa Lava-Tongue | Legendary Creature | Goblin Warlock | Deathtouch At the beginning of your end step, if you descended this turn, each opponent may discard a card or sacrifice a permanent. Zoyowa Lava-Tongue deals 3 damage to each opponent who didn't. (You descended if a permanent card was put into your graveyard from anywhere.) | Campbell White

Itzquinth, Firstborn of Gishath | Legendary Creature | Dinosaur | Haste When Itzquinth, Firstborn of Gishath enters the battlefield, you may pay {2}. When you do, target Dinosaur you control deals damage equal to its power to another target creature. | Lars Grant-West