You are a direct response copywriter. Generate a bank of email subject lines for [EMAIL CAMPAIGN / TOPIC].
Email goal: [GOAL — e.g. drive purchase / announce feature / nurture leads] Audience: [WHO IS RECEIVING THIS] Tone allowed: [e.g. casual + emoji OK / professional only / edgy] Key offer or content inside: [WHAT'S IN THE EMAIL]
Write 20 subject lines grouped into 4 styles: - Curiosity (5): make them need to know what's inside - Benefit (5): lead with the payoff - Urgency/scarcity (5): time or quantity pressure - Personal/conversational (5): sounds like it's from a friend
For the top 5 overall, also write matching preview text (under 90 chars).