Pikachu has a battle win rate of 89% in 538 battles, proving to be Ash's strongest Pokemon. Greninja showcases a win rate of 87% in 55 battles, transforming into Ash-Greninja to secure victories.

Here is every partner that Ash owns and has bonded with over the long years of his journeying across the Pokémon world, including those he released at some point—after all, as the final ...