Healing Stone
From Arkham Horror Wiki
Healing Stone is a unique item. It first appeared in the Arkham Horror game, but a corrected copy was included in the Dunwich Horror expansion.
Card info
Upkeep: You may gain 1 Stamina or 1 Sanity.
Discard Healing Stone if the Ancient One awakens.
Price: $8
Correction
The original card did not specify "Discard Healing Stone if the Ancient One awakens."