The complete Pokemon RBY pokedex, part 9

Pokémon Name: Drowzee
Type: Psychic
Classification: Hypnosis Pokemon
Pokédex Number: 096
Ability: Insomnia and Forewarn
Dream World ability: Inner Focus
Useful Attacks: Psybeam
Location Found:
D/P/P: Swarms in Route 215
HG/SS: Routes 11, and 35, Safari Zone (Swamp area at night)
B/W: Poke Transfer

Drowzee's special defense and HP are high when compared to many other Pokemon, though we've rarely seen a person use this duo in actual battle.

Evolution: To Hypno at 26