Ixalan

Headwater Sentries | Creature | Merfolk Warrior | | Naomi Baker

Pirate's Prize | Sorcery | | Draw two cards. Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") | Deruchenko Alexander

Run Aground | Instant | | Put target artifact or creature on top of its owner's library. | Sara Winters

Storm Sculptor | Creature | Merfolk Wizard | Storm Sculptor can't be blocked. When Storm Sculptor enters the battlefield, return a creature you control to its owner's hand. | Sidharth Chaturvedi