This monster appears in the Dungeons & Dragons Player's Handbook 2024.
Traits
Amphibious. The beast can breathe air and water.
Primal Bond. Add your Proficiency Bonus to any ability check or saving throw the beast makes.
Actions
Beast’s Strike. Melee Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. Hit: 1d6 + 2 plus your Wisdom modifier Bludgeoning or Piercing damage (your choice when you summon the beast), and the target has the Grappled condition (escape DC equals your spell save DC).