BlogNomic: The First Dynasty of Desertfrog

Create a subrule to “Calvinball” with the title “Passing” and the text:-

If a Child possesses the Ball, or is Best Friends with an Imaginary Friend who possesses the Ball, then they may Throw the Ball by updating the GNDT with a note of: “I throw to X” where X is the name of a Child or Imaginary Friend who is not currently in possession of the Ball, and updating the GNDT by removing the Ball from their possession and putting it in the possession of X.

Randomly select a child and put the ball in their possession.