Tar'chak

The Tar'chak battleship was built to bring an anchor to the Klingon fleet of relatively light ships, a powerful heavy combat core suitable for matching up with Romulan heavies like the Devoras Heavy Warbird.

With firepower equivalent to an Excelsior-A, superior hull and shields, and equal endurance, the Tar'chak admirably fulfills its purpose and gave good service in the Klingon-Romulan War.