From Guild Wars 2 Wiki
Stimulated Ooze is a trophy required for the The Juggernaut III: The Colossus legendary weapon collection.“
Hint: Feed Murellow Stimulant Snack to your Tiny Chromatic Ooze. Rykskott has been known to use this snack while training murellow in Dredgehaunt Cliffs.
— In-game description
- This item does not enter your inventory. It is added directly to the collection.