Refinements:

R1: Courage

On hit, Normal or Charged Attacks increase ATK by 6% for 6s. Max 4 stacks. Can occur once every 0.5s.

R2: Courage

On hit, Normal or Charged Attacks increase ATK by 7% for 6s. Max 4 stacks. Can occur once every 0.5s.

R3: Courage

On hit, Normal or Charged Attacks increase ATK by 8% for 6s. Max 4 stacks. Can occur once every 0.5s.

R4: Courage

On hit, Normal or Charged Attacks increase ATK by 9% for 6s. Max 4 stacks. Can occur once every 0.5s.

R5: Courage

On hit, Normal or Charged Attacks increase ATK by 10% for 6s. Max 4 stacks. Can occur once every 0.5s.

Your support is more valuable than a primogem.