Underdog Whose Name Starts With "B"
- Basculin
- Bagon
- Braixen
- Bounsweet
- Brionne
- Bunnelby
- Bellossom
- Binacle
- Beautifly
- Beartic
- Butterfree
- Burmy
- Beedrill
- Barbaracle
- Braviary
- Barraskewda
- Bombirdier
- Bronzong
- Beldum
- Bellsprout
- Bergmite
- Beheeyem
- Bewear
- Bronzor
- Boltund
- Baltoy
- Barboach
- Blissey
- Bruxish
- Bellibolt
- Blastoise
- Bastiodon
- Buneary
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- Brambleghast
- TBA
- TBA
- TBA
- TBA
- Blacephalon
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA
- TBA