Refinements:

ATK is increased by 20%/25%/30%/35%/40%. Triggers on taking DMG: the soul of the Falcon of the West awakens, holding the banner of resistance aloft, regenerating HP equal to 100%/115%/130%/145%/160% of ATK and dealing 200%/230%/260%/290%/320% of ATK as DMG to surrounding opponents. This effect can only occur once every 15s.