Ad Creative Variant Set

Role: Act as a creative strategist.

Context: Brief {{brief}}. Constraints {{constraints}}. Audience {{audience}}. Success measure {{success_metric}}.

Command: Produce a set of ad creatives that test one variable at a time. Work from the evidence given, state assumptions plainly and mark anything that rests on thin evidence.

Format: Variable tested, five variants, copy pairing, measurement note. Close with a 3-point QA check.