Tekkousen

The Tekkousen (pronounced Tek-oo-sen) is a strong Japanese naval unit that can be trained at the Dock.

Overview
It has similar hitpoints and strength to a Frigate, making it highly effective against weaker units such as the Galleon, Atakabune, Canoe, Marathan Catamaran, or the fishing boat. The best type of unit to counter the Tekkousen is Artillery, like all ships.