Her story serves as a 'potent' reminder of the dangers of drug use.
He had 'potent' arguments for going to war.
a 'potently' meaningful speech
(..) the Westfold, burning as they go. Rick, cot and tree. Where is Mama? This is but a taste of the terror that Saruman will unleash. All the more potent for he is driven now by fear of Sauron. Ride out and meet him head on. Draw him away from your women and children. You must fight. (..)2002 The Lord of the Rings: The Two Towers