The Plesiosaur is a fast, powerful aquatic mount suited for deep-water exploration, transportation, combat, meat gathering, and supporting mobile underwater bases. To tame one, lure it away from its group into a secure underwater trap or depth barrier, then tranquilize it safely from a fast aquatic mount and maintain its unconsciousness while feeding appropriate food. When encountering one, avoid close combat, watch for nearby predators and other Plesiosaurs, and retreat toward the surface or attack from range to exploit its depth limitation.