Here's why:
* Ghost-type nature: Ghost-types aren't inherently evil or corrupted. They are a natural part of the Pokémon world, representing the spirits of deceased Pokémon or even humans.
* No shadow equivalent: Unlike Shadow Pokémon, which are corrupted by dark energy, Ghost-types don't have a "purified" counterpart.
* Gameplay mechanics: In the Pokémon games, Ghost-types are treated as any other type with their own strengths and weaknesses.
However, there are some instances where Ghost-type Pokémon are associated with negative connotations:
* Some Ghost-types are based on malevolent spirits or entities: Examples include Gengar, Misdreavus, and Chandelure.
* Some Ghost-type moves can have harmful effects: Moves like Shadow Claw, Shadow Sneak, and Lick can inflict negative status conditions.
In these cases, you can still combat the "negative" aspects of a Ghost-type by:
* Using a strong counter: Choose a Pokémon with a type advantage over Ghost-type (like Dark or Ghost).
* Utilizing status moves: Moves like Thunder Wave, Toxic, or Will-O-Wisp can weaken or disable a Ghost-type Pokémon.
* Understanding the lore: Ghost-type Pokémon are often misunderstood and feared. By learning about their origins and motivations, you can gain a greater appreciation for these unique creatures.
Remember, Ghost-types are just another part of the Pokémon world with their own complexities and charm. They aren't meant to be "purified" but rather understood and accepted for what they are.