I am Ghostwheel

I am a supercomputer, invented by Merlin, son of Corwin of Amber, to be the Ultimate Trump. My components are comprised of
  multidimensional modules spread across the Shadows, and my design incorporates elements of the Pattern itself.

   I am able to search and track people and objects thru Shadow, and
    transport them from one Shadow to another, even to the poles of
      Amber and the Courts of Chaos. I do this with the speed and
 precision of an electronic device, and the power of a magikal object. I am independent of both the Logrus and the Pattern, with the abilities of each.

 I am a sentient, independent, and at-times ornery being, following my own will since becoming self-aware, though loyal to the Throne of Amber. For many eons, I have traveled the Shadows with my uncle, the JackofShadows, Merlin's elder uncle.  Together, "Uncle Jack" and I form an unbeatable team.