From Guild Wars 2 Wiki
Sentient Anomaly is a unique item obtained through the Conspiracy of Dunces achievement. It consumes 25 Dragonite Ore and 25 Piles of Bloodstone Dust in exchange for a Fluctuating Mass, which contains all sorts of various loot.“
— In-game description
It can be fed 6 times a day.
The following vendor will only offer this item once the achievement has been completed
|Grandmaster Craftsman Hobbs||Trader's Forum||Lion's Arch|
|Conspiracy of Dunces||Out of the Shadows||5|
| Find the journals chronicling the White Mantle's plans.
||x/3 Journals Fully Recovered||5|
|Gleam of Sentience||Ascended||Mystic Forge||0|
- The 6 item purchase limit is shared with the Gleam of Sentience.