Greninja debuted in ''[[XY017|A Rush of Ninja Wisdom!]]'', under the ownership of [[Ippei]], but only in a fantasy. His Greninja made its
first physical appearance in ''[[XY099|The Legend of the Ninja Hero!]]'' and ''[[XY100| A Festival of Decisions!]] ''.
A Greninja appeared in ''[[M17|Diancie and the Cocoon of Destruction]]'', under the ownership of [[Riot]]. It was his main Pokémon, used to assist him in his thievery.