Eurypterids are dangerous aquatic creatures whose attacks rapidly inflict torpor, threatening both survivors and mounts even in shallow water. Approach them cautiously and use a Fish Basket with a long-range aquatic taming strategy to capture one safely. When encountered, keep your distance with ranged weapons or a strong aquatic mount, as they remain close to the seafloor. Harvesting them with a metal pick yields chitin and may provide valuable black pearls.