In Universe 18, Future Kai and Future Zaydon are training each other as they collided their fists together.

Future Kai:  *turns into Super Saiyan God*

Future Zaydon:  *turns into Super Saiyan God Platinum*

    They kept throwing ki blasts, punches, and kicks to each other until Kai grabs Zaydon's fist.

Future Kai:  Let me show you my new form, Zaydon.

Future Zaydon:  Alright, let it out!!!

    Kai begins to scream into rage as his hair was turning blue including his aura. Suddenly, Kai smirks at Zaydon as he turns Super Saiyan God Blue.

Future Kai:   Now, let's see whose the strongest in the universe.

Future Zaydon:  Right.

    They charged toward each other as they punched each other in the face.