The tag alias #46408 ash_greninja -> ash-greninja has been approved.
Reason: The official spelling of this alternate form of Greninja uses a hyphen. This spelling was even used on Pokémon TCG cards: https://bulbapedia.bulbagarden.net/wiki/Ash-Greninja-EX_%28XY_Promo_133%29
EDIT: The tag alias ash_greninja -> ash-greninja (forum #291346) has been approved by @Rainbow_Dash.
Updated by auto moderator