The Thrower's Spheres are 1/4 the size of the tank itself.
The Thrower has an identical right click ability to the Spheres. Its left click ability will stop the Spheres' spinning and throw one at the mouse at an extremely fast speed. Once it reaches its destination the Sphere will automatically be destroyed and regenerated in 3 seconds as opposed to 5 for when a Sphere is destroyed normally.
The Thrower's Spheres are identical to its predecessor's.