Wyvern

The Wyvern is a jewel of the current Terran fleet. It's a Battleship that targets Frigates. However, it is vulnerable to the Zikonian Clipper, since the Clipper is FR-BS and it has a better initiative. To counter this, you'd have to build a whole bunch of Wyverns, in order to outflak the Clippers. On this note, it may help to build Dragons/Leviathans aswell.

Stats

Here is the 'Wyvern' line from the r15 shipstats- Wyvern Battleship Frigate Norm 9 510 270 36,000 27,000 27,000 56 30