Fortune Bell
When an Echo undergoes Gradation, there is a 5% chance to increase its Daily Coupon yield by 100%.
Details 
Dream Attribute: 
Dream of Gradation
Rarity: 5
When an Echo undergoes Gradation, there is a 5% chance to increase its Daily Coupon yield by 100%.
Dream Attribute: Dream of Gradation
Rarity: 5