Swim

Approval here

When swimming, Praetorum will find the water becomes much thicker under his hands and feet and around his tail, allowing him to propel himself far better with his webbed fingers and toes and use his tail more effectively as a rudder. On the flip side, if he stops moving while mostly submerged, whether its because he's treading water or floating on the surface or trying to take a bath, the water will start to flow randomly of its own volition, turning into a riptide that drags him wherever the water wants. The riptide will stop short of trying to drown him, but it will make it very difficult for him to get away as it buffets him to and fro.