Tera Raids - Unrivaled Greninja .

This Greninja is from an event raid held by Scarlet and Violet. Notably, with this event you get a chance to encounter Tera raids featuring a level 100 (Shiny locked) Greninja with the Poison Tera type.

This event runs from January 27 to January 29, and from February 10 to February 12, 2023.

If you're looking to import this file and fight the raid for yourself, link here.