Ixalan

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

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

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

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

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