The Ballista is one of the five special units of the Knights team.
The Ballista appeared in the King story as one of the four default buildable specials on the team. It is most efficiently used as an offensive unit.
The Ballista is tied with the Dwarf King being the most powerful units on the Knights team. It has 5 attack points, 450 heart points, costs 350 Gold Bricks to build and possesses 3 speed points. It's the second cheapest special unit on the Knights team.