Ixalan

Axis of Mortality | Enchantment | | At the beginning of your upkeep, you may have two target players exchange life totals. | Bastien L. Deharme

Wakening Sun's Avatar | Creature | Dinosaur Avatar | When Wakening Sun's Avatar enters the battlefield, if you cast it from your hand, destroy all non-Dinosaur creatures. | Tyler Jacobson

Jace, Cunning Castaway | Legendary Planeswalker | Jace | +1: Whenever one or more creatures you control deal combat damage to a player this turn, draw a card, then discard a card. −2: Create a 2/2 blue Illusion creature token with "When this creature becomes the target of a spell, sacrifice it." −5: Create two tokens that are copies of Jace, Cunning Castaway, except they're not legendary. | Kieran Yanner

Overflowing Insight | Sorcery | | Target player draws seven cards. | Lucas Graciano

Boneyard Parley | Sorcery | | Exile up to five target creature cards from graveyards. An opponent separates those cards into two piles. Put all cards from the pile of your choice onto the battlefield under your control and the rest into their owners' graveyards. | James Ryman

Dire Fleet Ravager | Creature | Orc Pirate Wizard | Menace, deathtouch When Dire Fleet Ravager enters the battlefield, each player loses a third of their life, rounded up. | Bram Sels

Rowdy Crew | Creature | Human Pirate | Trample When Rowdy Crew enters the battlefield, draw three cards, then discard two cards at random. If two cards that share a card type are discarded this way, put two +1/+1 counters on Rowdy Crew. | Steve Prescott

Star of Extinction | Sorcery | | Destroy target land. Star of Extinction deals 20 damage to each creature and each planeswalker. | Chris Rahn

Carnage Tyrant | Creature | Dinosaur | This spell can't be countered. Trample, hexproof | Yeong-Hao Han

Vona, Butcher of Magan | Legendary Creature | Vampire Knight | Vigilance, lifelink {T}, Pay 7 life: Destroy target nonland permanent. Activate only during your turn. | Volkan Baǵa

Huatli, Warrior Poet | Legendary Planeswalker | Huatli | +2: You gain life equal to the greatest power among creatures you control. 0: Create a 3/3 green Dinosaur creature token with trample. −X: Huatli, Warrior Poet deals X damage divided as you choose among any number of target creatures. Creatures dealt damage this way can't block this turn. | Tyler Jacobson

Tishana, Voice of Thunder | Legendary Creature | Merfolk Shaman | Tishana, Voice of Thunder's power and toughness are each equal to the number of cards in your hand. You have no maximum hand size. When Tishana enters the battlefield, draw a card for each creature you control. | Anna Steinbauer

Vraska, Relic Seeker | Legendary Planeswalker | Vraska | +2: Create a 2/2 black Pirate creature token with menace. −3: Destroy target artifact, creature, or enchantment. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") −10: Target player's life total becomes 1. | Chris Rahn

Gishath, Sun's Avatar | Legendary Creature | Dinosaur Avatar | Vigilance, trample, haste Whenever Gishath, Sun's Avatar deals combat damage to a player, reveal that many cards from the top of your library. Put any number of Dinosaur creature cards from among them onto the battlefield and the rest on the bottom of your library in a random order. | Zack Stella

Admiral Beckett Brass | Legendary Creature | Human Pirate | Other Pirates you control get +1/+1. At the beginning of your end step, gain control of target nonland permanent controlled by a player who was dealt combat damage by three or more Pirates this turn. | Jason Rainville