Content creator as we spoke before is a writer who decided to be professional in specific field of of writing like programming or design, but a copywriter is a different thing; he studies the base that your project targets and the clients that utilize your service and creates a content that connects both parties to achieve highest reach possible.
What content creator presents on the internet is fairly similar to what a journalist presents in a newspaper or a magazine the small difference is a copywriter has commitment to present his content in an attractive way to viewers.
Search Engines Knowledge
A copywriter must have a base knowledge of how search engines prefer some sources over others and what makes specific sources attractive to them so he can base his content on these algorithms.
A Good Reader
A good copywriter must be somewhat of a book worm having a little bit of information about every field can never hurt in the business world we see today. though mostly he will write different topics some of them are not related to his field depending on his client demands and being able to deliver and such conditions is definitely a huge plus.
A Tech Savvy
A good copywriter should be able to follow tech updates on the internet on the basis of that his is affected on day to day basis by these updates and influenced specially by what happens on social media.
A huge plus is the ability to introduce original ideas and the ability to create and present creative, different and unique idea can make you really something special in the field.