Chinese-server data. English names and effects are provisional; untranslated details remain in Chinese.
Prayer stone
Encouragement Prayer Stone
共勉祷石
PurpleUniversalExtra effect · The slot’s highest Attunement reaches grade B
Source: Random drop
Prayer stone effects
When the sailing crew includes all 6 attributes, increase all crewmates’ HP by 10%.
Extra effect
The slot’s highest Attunement reaches grade B
Increase all crewmates’ HP by 15%.
Acquisition source
Random drop
Recorded source: Random drop.
Source: 遗忘之海 · 祷石记录器 (Chinese)Lore
Item story
Overlapping silhouettes cover the stone. It is said to have been used when new recruits swore their oaths to sailing crews.