This Slowking is a water/psychic-type Pokémon owned by Lorelei.
As Lorelei, Red, Blue and Green were confronted by The Three Beasts, Lorelei used Carr's Forretress' Explosion as a smokescreen for her Slowking to use Dig to escape from Team Rocket's attack.
When Lorelei said that she should go to Seven Island, Slowking was behind her.
In a battle between against Sird, Slowking and her Jynx were knocked out by the Unown that rushed over and attacked them, after Sird solved the riddle at the Tanoby Ruins.
|| A Beastly Cold Reception
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.