Blackstone
The third 10-item collection goal. Collecting 10 completes the achievement 「Leave No Stone Unturned」.
Updated 2026-10-30·
#collectible#progression
Mechanics
Blackstones are a collectible item, with a target of 10. In the achievement table they follow the same structure as Sha-Chi Amber and Memory Flowers: one item type, one fixed count, one dedicated achievement.
How Blackstones are obtained and what they are used for is not mentioned in the achievement text.
Achievement
「Leave No Stone Unturned」 — Collect 10 Blackstones