Chinese-server data. English names and effects are provisional; untranslated details remain in Chinese.
Prayer stone
Shadow Prayer Stone
暗影祷石
PurpleAgilityExtra effect · Agility Attunement reaches grade B
Source: Random drop
Prayer stone effects
When an Agility crewmate uses a signature skill, increase damage dealt by X, where X equals the main target’s 暗影 stacks × 1%. Without consuming 暗影, apply effects as though the target’s 暗影 stacks were consumed.
Extra effect
Agility Attunement reaches grade B
Increase the damage bonus from each 暗影 stack by 0.5%.
Acquisition source
Random drop
Recorded source: Random drop.
Source: 遗忘之海 · 祷石记录器 (Chinese)Lore
Item story
The crystal at the stone’s heart is black as night. A thief lying in wait can grip it and melt into the dark, like a drop of ink in black waves.
Same attribute
