Don't let King Phantom get bored or he will do meaningless things
Danny got bored and decided to have a tennis competition, even though he had no idea how to play Tennis and had never held a racket in his life. He thought it would be fun.
He joined Dan because incredibly he knew how to play tennis (he was also quite fed up with Danny's presence, but he didn't have many options since the halfa had promised him his freedom if he won), and his opponents were Jazz and Dani.
In a very short time Danny got tired of losing. Clockwork suggested him to get new players to practice, and he took it seriously. Maybe he would have to look for superheroes to practice with.
He abused his Ghost King powers and transported the Justice League to the Realms to, you guessed it, play tennis. He explained that he and Dan would be their opponents in the final round, and if they didn't win, Dan would be free.
Dan was quick to explain that he was a prisoner of war after destroying a universe, but the King promised his freedom if he won (which wasn't entirely a lie), and wished them luck, commenting that perhaps he would visit their universe next.
Jazz and Dani sighed at their brothers' behavior; Dan would visit to annoy someone, though he surely wouldn't do anything, and Danny didn't even know how to play tennis but somehow made all the heroes panic. It was pretty obvious that they were both playing.
After this interaction John Constantine wondered what the fuck was wrong with the universe. Was the balance of his world really tied to a hyperactive teenager and his weird family?
