The Tusoteuthis is tamed by feeding Black Pearls at its beak while a high-health aquatic tame absorbs its grabs, retreating between feedings until the process is complete. As a powerful underwater mount, it excels at combat, exploration, resource gathering, and controlling creatures with its tentacles, while also producing oil and siphoning health from held targets. When encountering one, use a mount it cannot grapple, keep other tames clear, target its beak if seized, and retreat when it releases ink or flees; avoid powerful variants unless well prepared.