Deinosuchus is a formidable land-and-water mount with powerful bites, a charged attack, tail whip, trapping capabilities, and oxygen sharing that make it valuable for exploration, hunting, underwater travel, and boss encounters. To tame one, isolate it in a secure enclosure, approach cautiously in ghillie armor while crouching, and feed it high-quality food from the side near its neck when it displays feeding behavior, retreating whenever it becomes aggressive. When encountering a wild Deinosuchus, keep your distance and use ranged attacks, avoid its front, rear, and underside, and lure it away from danger when possible.