Polar Star (5★)

Elemental Skill and Elemental Burst DMG increased by 12%. After a Normal Attack, Charged Attack, Elemental Skill or Elemental Burst hits an opponent, 1 stack of Ashen Nightstar will be gained for 12s. When 1/2/3/4 stacks of Ashen Nightstar are present, ATK is increased by 10/20/30/48%. The stack of Ashen Nightstar created by the Normal Attack, Charged Attack, Elemental Skill or Elemental Burst will be counted independently of the others.