Complex sentence: Mal manages to pry the wand from Jane about to fulfill her mother's wishes, but Ben convinces Mal she is good and that she and her friends should follow their hearts, not their parents' evil ways.
Split into simpler sentences: Mal manages to pry the wand from Jane about to fulfill her mother's wishes. But Ben convinces Mal she is good and that she and her friends should follow their hearts, not their parents' evil ways.