Leviathan

The Leviathan is a powerful naval myth unit that has two uses. It can act as a sturdy transport ship and as a powerful fighter. It has a huge amount of HP, good armor, and a high attack but it cannot attack air units. When used as a transport, its high hitpoints and armor make it tough to destroy, so it is better than transport ships for protecting powerful units. When used as a fighter, it is an effective "meat shield" for arrow and siege ships.