Refinements:

When using an Elemental Skill, ATK will be increased by 12%/15%/18%/21%/24% for 15s, and a Bond of Life worth 25% of Max HP will be granted. This effect can be triggered once every 10s. When the Bond of Life is cleared, a maximum of 150/187.5/225/262.5/300 ATK will be gained based on 2.4/3/3.6/4.2/4.8% of the total amount of the Life Bond cleared, lasting for 15s.