The plagues tested Pharaoh's heart, and they became a witness against his hardness of heart. AT: "signs and wonders that testified against Pharaoh" or "signs and wonders that condemned Pharaoh" (See: [[rc://en/ta/man/translate/figs-explicit]])
Here "name" represents a reputation. AT: "you made yourself famous and even now people still remember" (See: [[rc://en/ta/man/translate/figs-metonymy]])