Refinements:

When the equipping character's current HP increases or decreases, Elemental Skill DMG dealt will be increased by 8%/10%/12%/14%/16% for 6s. Max 3 stacks. This effect can be triggered once every 0.2s. When other party members' current HP increases or decreases, the equipping character's Max HP will be increased by 14%/17.5%/21%/24.5%/28% for 6s. Max 2 stacks. This effect can be triggered once every 0.2s. The aforementioned effects can be triggered even if the wielder is off-field.