translation problem

Hi, in the following sentence I’dont understand why the adjective magnus is in genitive, can anyone explain me?

“Homo magni iudicii esse debebit orator”

My translation would be: The orator should be a great man for the judge.

Thanks.

The adjective agrees in number, gender, and case with the noun it refers to:

_magni iudici_i, and not homo magnus.

Also the noun is iudicium not iudex. Give it another try.

Thanks, bedwere. Then it’d be:

The orator should be a man of great judgment.