Valor marks a nearby enemy with Vulnerability for 4.5 seconds. If Quinn attacks a vulnerable enemy, she deals 15 + 10 per level (+50% bonus AD) bonus physical damage. This cannot occur again for 10 seconds, or 3 seconds if Quinn triggers the vulnerability. Valor will first prioritize Quinn's most recent attack target. If Quinn has not attacked anyone recently, Valor will target nearby low health units (prioritizing champions over minions).