Kalran: Tales of the four nations/Shipwright station

Due to the Axio Humans gift in water magic, and their natural ability to breathe underwater, many of their ships are amphibious, using their magic to create a special mist to propel their ships on land. While their heavy vehicles, with hulls made of pykrete, uses tank threads, also made of pykrete, to drive upon land.

They also have an array of tamed sea animals which they bring into battle.