Pokémon: Best Wishes (Black & White) · Best Wishes Season 2: Decolora Adventures arc
BW137 · Celebrating the Hero's Comet!
オンバーン登場！彗星と勇者の伝説！！
Synopsis
What happens.
As Ash and his friends continue their journey to Kanto through the Decolore Islands, Alexa informs the group of the Conley comet, which shall be passing over the island that night and informs that the mountain top is the perfect place to see it.
Synopsis adapted from Bulbapedia's BW137 entry, used under CC-BY-NC-SA 2.5.
Story arc · BW109-BW144
Best Wishes Season 2: Decolora Adventures.
Post-league filler bridging to XY. Cast tours the Decolora Islands. Iris and Cilan get more spotlight; less consequential than Episode N.
Read the full Black & White guidePokémon featured · 15
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 Best Wishes Season 2: Decolora Adventures.
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.