Pokémon: The Original Series · Master Quest arc

EP266 · Mother of All Battles

バンギラスとヨーギラス!

US air. 2003-09-15 JP air. 2002-09-05 Season. Master Quest (S5) Position. Episode 265 of 276 in Original

Synopsis

What happens.

Ash leaves the Silver Town Pokémon Center, having just registered for the upcoming Silver Conference. He and his friends are greeted by Gary, who announces that he is also entering the tournament.

Synopsis adapted from Bulbapedia's EP266 entry, used under CC-BY-NC-SA 2.5.

Story arc · EP213-EP274

Master Quest.

Ash completes Johto, then enters the Silver Conference. Defeats rival Gary Oak before losing to Harrison in the Top 8. The original trio splits at the end. End of an era.

Read the full Original guide

Pokémon featured · 20

Who appears.

Linked entries open the species page on the Pokédex. Items without a sprite (alternate forms, regional variants, generic group references) fall back to a name pill.

More from this arc

Other episodes in Master Quest.

Episode synopsis from Bulbapedia, CC-BY-NC-SA 2.5. Editorial context (arc affiliation, cultural moments, character signatures) hand-verified May 2026. Pokémon, character names, and series titles © Nintendo, Game Freak, Creatures Inc., The Pokémon Company, OLM Inc. This is an unofficial fan reference.