Ash's Greninja (Champion)

Ash's Greninja was the first Pokemon Ash caught in the Kalos region. As a Froakie, it chose Ash as his Trainer after witnessing his bravery and selflessness and the love and concern he showed other Pokemon. The bond between Ash and Froakie only progressed and grew from his evolution to Frogadier and eventually to Greninja.

Due to their very strong bonds of friendship, and Ash's latent Aura powers, they were able to access Battle Bond, where Greninja transformed into Ash-Greninja, gaining an incredible elevation in power, endurance and speed. Ash-Greninja has enough power to easily match and overwhelm the strongest Legendary Pokemon.