Several Trick Pony.

The slang term “one trick pony” is used to refer to something which can only be used for one very specific application. The term is also used to describe people; for example, a chef who can only produce one really good dish might be known as a one trick pony. The term is generally used in a disparaging way, since it suggests a lack of flexibility and an inability to work outside very specific parameters. Most people try to avoid creating or becoming a one trick pony for this very reason.

With this is in mind,