"A Good Hand At" is a phrase that is commonly used to describe someone who is skilled or proficient in a specific activity. However, there are several synonyms that can be used to express the same idea. For instance, you may say someone is adept, virtuoso, skilled, proficient, expert, competent, or talented in a particular field. These words denote someone who has honed their skills over time and is very capable in their area of expertise. By using these synonyms, you can express the same idea in different ways, adding variety to your speech or writing. Make sure to choose a synonym that best fits the situation you are describing to accurately convey the intended meaning.