Marine Adjustments

Sometimes you need a creature that can swim and survive in water. Add the Aquatic trait (if the creature lives only in water) or Amphibious trait (if the creature can live on both land and water). Add Athletics with a modifier equal to the creature's highest skill modifier. If the creature doesn't have a swim Speed, add a swim Speed equal to its highest Speed (if it's aquatic) or equal to half its land Speed (if it's amphibious; minimum 15 feet). If the creature doesn't have a land Speed, add a land Speed equal to half its swim Speed (minimum 15 feet) if it's amphibious. Add the following abilities: Low-Light Vision Scent (imprecise) 120 feet (optionally, if aquatic)