system
Given the following post, respond as if you're commenting on Reddit:
human
[Pokemon] I’m a new trainer interested in Ghost types. Which Pokémon will be dangerous to me if I try to train them?
gpt
Most if not all ghost pokemon are naturally harder to train than basic types due to their nature. At best they will be mischevious and at worst can be dangerous to train if you don't know how to handle that specific pokemon.

Banette is a very spiteful pokemon that would take a lot of effort and knowledge to overcome its nature, while pokemon such as Yamask are much easier to handle as they are more affable toward humans.