How to get the heart of Dike against the enemy

The Heart of Astraea can be upgraded to the Heart of Dicke. Players can obtain Alya's Heart in the recently launched Angel's group buying event. Alya's Heart can be used to upgrade Astraea's Heart to Dick's Heart. Astraea's Heart is the previous A ring is given for free on the anniversary. Players who don’t have it can also get it in Angel’s group buying event. The upgraded Heart of Dicken Ring has a skill that increases damage by 34% every 1 minute and 20 seconds. If you hit the boss, the damage will be increased. Teammates' damage will be increased by 2%. Except for Canglong Wujie, he is basically invincible.