Battle passive · #1142301
Ultrasonic Wave
Effect
When User's HP exceeds 0%/10%/30%/50%/90%/95% of Max HP, gains 0/1/2/3/4/5 stack(s) of Swift. Each Basic Attack drains 2% of User's Max HP.
Learning conditions
Assigned to the listed Lumi as a battle passive, with the required breakthrough stage shown below. Active-skill unlock costs and training courses do not apply.