Pokémon : S19 | E43 – Forming a More Perfect Union!

As the Kalos Gym Leaders attempt to stop the Megalith Crystal, Ash and Alain break inside and rescue Chespie. However, the Megalith Zygarde is still able to function without Chespie after Lysandre takes direct control over it. With no other option, Squishy and Z-2 join forms with every Zygarde Cell in the world to transform into the 100% Zygarde Complete Forme. The Zygarde Complete Forme is able to destroy the Megalith Zygarde and defeat Lysandre in a devastating Core Enforcer move, leaving his fate unknown. The Zygarde Complete Forme then repairs the damage caused by the battle, as Squishy shares a tearful goodbye with Bonnie before returning to the planet with Z-2. (Source: Wikipedia)